Would hiding a footer (with copyright information) on a website template be legal? Let's say that I decide to create a website template that users can download for free or purchase a license. The free version includes a footer on the sidebar that includes something like: © Copyright Someone Template made by https://www.example.com A user sees this template and decides to download the free version. Then, when he opens the files to edit it in a text editor, he notices the copyright notice on the footer. He also sees a comment in the HTML file (that is not visible when the file is viewed in the browser) that says something similar to: These links must stay here. Only remove them if you purchased a license. Now, it's safe to assume that if I registered the copyright and did all the paperwork, I could take legal action on that user if he removed that copyright notice. But, if they just hide the footer while still keeping it in the code, could I still take legal action?
You seem to assume that copyrights require paperwork such as registration. This is wrong, copyright is automatic. And it prevents the downloader from making the sort of change that you suggest. In fact, it prevents the downloader from using your template at all. The only reason the downloader can use that template is because you've granted him a specific license to ignore some copyright rules, but the default remains. And you did not grant the right to alter the template to free users.
Content posted to the web is usually openly accessible to all (unless protected by a password, paywall, or similar restriction). But that does not mean it is freely copyable by all. Such content is protected by copyright in just the same way as if it had been published in a book of essays by various contributors. Unless the copyright holders (who are likely to be the original authors, but might not be) give permission, or an exception to copyright applies, copying such content would be clear and obvious copyright infringement, and any copyright holder could sue for damages. Permission could be given by publishing the content under a permissive license, such as a CC-BY-SA license, or any of many other available permissive licenses. Or a would-be reuser could find the copyright holders and ask for permission. If the holder cannot be found or identified, or does not respond, then no permission has been granted. In the US the main exception to copyright is fair use. See this answer and other threads with the fair-use tag here for more on fair use. Since the question seems to contemplate using the whole of the posted content, since it might well damage any potential market for that content, and since the use does not seem to be &quot;transformative&quot;, nor used for criticism or comment, a finding of fair use for this situation seems unlikely. But Fair use findings are very much fact-driven, and the exact facts do matter. Thus I cannot be at all sure whether a court would find this toi be fair use or not. In other countries there are a variety of exceptions to copyright, and I have not come close to reviewing them all. But none of the ones I know of seem to apply to the situation described in the question. Many are narrower than the US concept of fair use. I fear that without permission, copying this content would be infringement. However, it would not be infringement to create a site that includes a link to the existing content, and a summary or description of that content, along with new content, including comments on the old, with brief quotes to indicate what is being commented on.
Yes, you may The layout of the board and its appearance are not protected by copyright, because they are not expressions or any other type of copyrightable content. Even if they were (say if some protested art was displayed on the board) you are displaying this for instructional purposes, and not harming any market for the board, so fair use is likely to apply (in the U.S.). The device could be protected by patent, but you are not copying or imitating the board, nor showing anyone how to do so, so that would not apply. You are not selling or advertising the board, nor knock-offs of it, so trademark protection would not apply, even if a protected trademark is visible on th board. Just in case, be sure to make clear that your video is not authorized or endorsed by the maker of the board.
The images and text are copyright (if they are). What Google does with them is fair use/dealing. It works like this: if Google's bot can find them then you (the owner) have put them on the World Wide Web presumably because you want people to see them, effectively you have put them on public display. Google is assisting you in that endeavour by enabling people who are looking for what you are displaying to find it. Their use of your material enhances its value to you which is a rock solid defence. If you don't want your stuff on public display then a) don't put it on a public part of the web - there are plenty of private cloud storage facilities or B) stick a file in your website that tells bots not to index it.
The basic principle about copyright protection is that the expression of an idea is protected, but the idea itself is not. So wholesale copying without permission is infringing. But the abstract algorithm is not protected by copyright (and let us assume that it also isn't patented). By way of analog, an insertion sort is a pretty easy concept to grasp, and once you understand it, you can re-create it, independent of how the original example (where from you learned about the sort) is expressed. So the question is whether it is necessary for you to copy that code (copyright protects against copying), or can you independently re-express the algorithmic idea (ideas are not protected)?
You can read it, you can examine it to the point where you understand it, and then you can get inspired by the code and write your own code, without copying the code on the website, which does the same thing. If there is no license, then you can do what copyright law allows you to do. You are not allowed to copy the code, or create derived works by taking the code and modifying it.
Counter notices are described in 17 USC 512(g)(3). It starts with the requirement for "A physical or electronic signature of the subscriber" (and a statement under penalty of perjury...). Supposing that you can't get anywhere with finding the contributor even via a subpoena, then you're stopped there: you can't swear on behalf of someone else. Paragraph (f) also says that if a person files a false infringement claim, they become liable for any damages, including costs and attorneys' fees, incurred by the alleged infringer, by any copyright owner or copyright owner's authorized licensee, or by a service provider, who is injured by such misrepresentation, as the result of the service provider relying upon such misrepresentation in removing or disabling access to the material or activity claimed to be infringing, or in replacing the removed material or ceasing to disable access to it but it's not immediately obvious that you would suffer damage by taking the material down (not immediately obvious doesn't mean obviously not true). A case could be made, but it's risky. In Online Policy Group v. Diebold, Diebold was hit with substantial damages basically for having made up a theory that certain email discussion was infringing when it was clearly fair use. If a person actually lies about being the copyright owner, that would probably be viewed even more dimly by the courts. Your 4th argument gives you no traction: if an infringer posts infringing material and transfers copyright on the web page, but they don't hold copyright, then that transfer mean nothing. As for the other arguments, your attorney will have to suggest an advisable course of action. S/he might advise that your evidence is so strong that you should just ignore the takedown; or that you should take the content down and then sue for damages; or take the content down and lobby your congressman for a change in the law. [Addendum] I will reiterate my recommendation to get a lawyer. I believe that under the law, the risk to you would be the situation where the person prevails in an infringement suit against you. Outside of the "mere conduit" safe harbor, you have to participate in the notice and takedown scheme in order to "stay safe" (also you have to do so quickly). You have identified a potentially huge flaw in the system. Theoretically, criminal charges of perjury and paragraph (f) damages would be enough to deter ordinary wrong-doers, provided that you can really prove that someone else is the copyright holder. But the cost of litigation is not zero and the chances of winning are not 100%. The law does assume that all parties tell the truth, indeed the law requires a "penalty of perjury" statement. Since counter-notice is also part of the legal dance, I would conclude that you do have to write yourself a counter-notice. Then if there is a suit, you have satisfied the requirements of the law.
If I make a working prototype and upload it on youtube will it prevent others from getting a patent on the idea? Generally yes. If the core information is accessible to the public, it becomes &quot;prior art&quot; and cannot be patented anymore by someone else. That includes you. Depending on local legislation, you have a small time window to apply for a patent (after disclosure) but if you don't, it's public domain and everybody is free to use it. If it's mainly code, you may be able to upload to Github and attach a license to it but that offers only limited protection. Globally? That depends on local legislation which there are too many of, to answer this here.