system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why they shut down Megaupload and why everyone is extremely happy that "Mega" is now on?

Sorry for living under a rock :(
gpt
The Megaupload service allowed people to upload and share things that made some people unhappy. Some important people decided that this shouldn't be allowed, so they shut it down, but they did it in an unfair way that didn't allow Megaupload to explain themselves and caused the owner a lot of unhappiness. It also caused problems for many people who used the service.

Now the owner has released a similar service and made it in such a way that no matter how unhappy those same people get, it's much harder for anyone to do anything about it.

People are happy partly because they didn't think it was fair on the owner or the users that megaupload was shut down, so it's nice that he's able to try again and partly because many people enjoyed the service and are glad to have an improved version available to them. Also, people are mad at the way the original service was shut down and this feels like the owner is getting a bit of revenge on them, so people are happy about that too.