When a reviewer feels something is off about a question, he/she has two choices:   Flagging the question with a category Downvote and optionally leave a comment   Leaving a comment is encouraged by a message saying something like: 'Please consider adding a comment ...'  However, writing a comment takes time (unless one has a user-script with templates), and I assume many downvotes have common causes, such as:   Mostly off-topic (but not in the off-topic list of reasons in the flags) Badly formatted Badly phrased Answer easily found via search engine, did not read the manual   I think it would be helpful if there was a one-click way of justifying a downvote, possibly adding a auto-generated comment (or an upvote on the same comment category).  Alternatively providing comment templates in the UI, such as these already shared in questions like this (which indicates there is a whole cult about many new posts doing the same mistakes requiring same old comments):
Preamble: I know that 'give a reason when downvoting' is a very common request, and I assure you that I have read these posts and the discussions in them and my request is very different. This isn't about encouraging people to comment and is more about gathering metrics.  I'd like to see a feature whereby people who are downvoted get some better feedback on why they were downvoted, especially given that people rarely leave comments in practice.  So my suggestion is that when user clicks on the downvote, they are prompted to pick from a short list (No more than 5) of common reasons. It would be a popup that replaces the existing "Please consider adding a comment" box.  The user receiving the downvote would see how many people downvoted them for each reason, but not who did it. It would significantly address the issue of people being too lazy to comment or not wanting to comment (for fear of retaliation or any other reason) while helping to ensure the user gets useful feedback.  Perhaps the downvote could also be weighted based on whether or not a reason is picked.  For questions the list might look something like:   Not a question Not relevant to the subject area Trivial question with no research effort Poorly asked question Other   And for answers, this might be:   Nonconstructive or not an answer Incorrect or dangerous answer Poor explanation Doesn't answer the original question Other
How do Zombies differentiate between a zombie and a human being? Zombies are always after human beings. How do Zombies differentiate between a zombie and a human being? Why don't zombies eat each other? Prove that $\overline {A^\complement} = (A°)^\complement $   To show that $\overline {A^\complement} \subseteq  (A°)^\complement$   We first show $A^\complement \subseteq  (A°)^\complement ...(*) $  We know that since $ A°\subseteq A \qquad (*)$ is automatically follows .  The part I didn't understand is the following:     Then we conclude that since $ (A°)^\complement$ is closed    $\therefore \overline {A^\complement} \subseteq  (A°)^\complement$ How do you prove the set $G = \{(x, f(x)) \mid x \in \mathbb R\}$ is closed? Let $f : \mathbb R \to \mathbb R$ continuous. Prove that graph $G = \{(x, f(x)) \mid x \in \mathbb R\}$ is closed.  I'm a little confused on how to prove $G$ is closed. I get the general strategy is to show that every arbitrary convergent sequence in $G$ converges to a point in $G$.  Here is what I tried so far:   Let $x_k$ be a sequence which converges to $x$. Since $f$ is continuous, this implies that $f(x_k)$ converges to $f(x)$. At this point, can you say every $(x_k, f(x_k))$ converges to a $(x, f(x))$, so $G$ is closed? How to draw Venn diagrams (especially: complements) in LaTeX How do I set a default host for nginx? I'm trying to figure out how to set a default host for my nginx installation. I found this article in the nginx Wiki:    Unfortunately, this doesn’t work. After restarting I get this:  Restarting nginx: nginx: [emerg] unknown directive "http" in /etc/nginx/sites-enabled/catchall:1 nginx: configuration file /etc/nginx/nginx.conf test failed   After removing the http directive I get this:  Restarting nginx: nginx: [emerg] unknown log format "main" in /etc/nginx/sites-enabled/catchall:7 nginx: configuration file /etc/nginx/nginx.conf test failed   I’m on Ubuntu 10.04.3 where I’m using the official nginx PPA. Version 1.0.9 of nginx is running. Why don't planets have Circular orbits? Just out of curiosity, I have developed a small app analysing and generating sitemaps for a given domain.   Can I tell search engines to look for the sitemap of a given domain on my app using a dynamic url i.e. can you use cross-domain sitemaps.xml without validating you are owner of the destination domain?  For example :   http://example.com/mydomain.com/sitemap.xml Solve for $x$ in the $80^\circ$-$80^\circ$-$20^\circ$ triangle I've been solving this for days but I still I couldn't solve this. Can I know how to solve $x$ ? PHP __PHP_Incomplete_Class Object with my $_SESSION data permission error when installing ttf-mscorefonts-installer/Can't drop privileges as file couldn't be accessed by user '_apt' I suspect that some bug makes internal linking count towards Publicity badges too. The badges :  These badges are specifically for linking to questions like the description says. The link must be clicked from outside the network in order for it to count for this purpose.  However, 2 days ago I was  for a question that I really feel does not need such linking to start with: . Also, I always try to use full links. And above all:  for the link gives me a single hit, for . Maybe it's thinking that empty REFERER headers (for those that block that, or for Safari users who ) should be counted too? Or maybe some search bot is using lots of IP addresses? Or visitors of Stack Overflow clones are to blame? Reading input from text file to array in c++ Are there any non-green, non-artifact mana ramp cards? I have looked and can't seem to find any.  I have seen many green cards and some artifacts that do this, but nothing in Red, Blue, Black or White.    Are there any?  Note: By "Mana Ramp" I mean a card that generates mana, or one that lets you play more than one land per turn.  The end result, for example, would be on turn 4, playing a white only deck, I could tap more than 4 mana.  (Normally you only get one land per turn so a max of 4 mana on turn 4.) What's the best way to deal with hot/stuck pixels in long exposure night photographs? I discovered red/blue/white pixels on my night photographs tonight. Trying to confirm this, I took a black image with the lens on and indeed I saw a whole lot of them (I didn't count them but at least a good fifty on the whole picture).   I'm not exactly sure if they are hot pixels, stuck pixels or anything else.  I quickly gave a check to my last exported JPEG files (I get RAW out of the camera) and couldn't find anything. After a quick search, I've seen that Lightroom is caring about those pixels after RAW conversion.  I've read that, with Canon DSLRs, there is a software process that could take care of that directly on my camera. I don't know if I can use it without getting things even more messy.   My question is: Considering my crazy pixels are not visible on my pictures, should I get too emotional about them? My camera is under warranty but is it really worth it to return it to Canon? If it's only to receive it back 1 month later after Canon just used the very same menu to map out the pixels, it's a bit ridiculous. Could this be a sign that my camera has a bigger problem?  It seems related to shutter speed. When shooting a black image at 1/250s I get nothing. When shooting the same setup but 1s, I get a few of them. The more I increase the shutter speed, the more crazy pixels I get. How do we see? Where do the photons disappear? Filesystem owner changed by mistake I just notice it now as I am new to Illustrator.  When I am in RGB mode, blending transparency seems to be easier as mode such as Screen, Multiply or Overlay looks good naturally.  If I switch the document mode to CMYK then the image is getting messed up.  I'd like to know, if CMYK is not ideal for blending options? Dividing polynomial $f(x)$ by $x-3$ and $x+6$ leaves respective remainders $7$ and $22$. What's the remainder upon dividing by $(x-3)(x+6)$? multiple choice question on number theory If you activated a free upgrade to Windows 10 or bought and activated   Windows 10 from the Microsoft Store, you have a digital license for   your device. This means you can reinstall the same edition of Windows   10 that your device has a digital license for without entering a   product key. During reinstallation, if you’re asked to enter a product   key, you can skip this step. Windows 10 will automatically activate   online after the installation is complete.   source:   Does MS digital license 'fingerprint' hardware information  during the free upgrade / activation and store it (at Microsoft) , so that the next re-install queries MS for the fingerprint and activates Windows 10?  Thought the disk drive may change, I expect that none of the other fingerprinted hardware will change.