[MartinodF]

You may be right! In that case, that's the risk you take when you decide to store the only copy of your important data on a service which is known for offering tons of pirated content (Megaupload appeared among the top results when searching for movies, tv shows, cracks and so on), run by a man who "was convicted of 11 counts of computer fraud, 10 counts of data espionage, and an assortment of other charges" [1]. If you really don't want to have a secondary copy, you should at least inform yourself about the company you're trusting your data with.

That said, I'm sorry for everyone that lost their data, but it's really not different than your hard drive failing without a backup.

[1] http://en.wikipedia.org/wiki/Kim_Dotcom