they think megaupload because it's a place where files are uploaded and it's one of the main ones. there's obviously a ton of pirated stuff on it, but that's not what they do: all they do is allow is people to upload files. that's it, and it's perfectly legal to do that. the site's so big that it's impossible to police it, but they do try to take down whatever they find, which is usually going to be what people report.
but you can't search on megaupload. there are other, third party sites that ALLOW you to do so, but you can't search there.
also an easy way to become a large portion of the internet isn't even through piracy, but porn. of which there's probably more of that than anything else on it. >_>;
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The King Wang.
Listen up Urinal Cake. I already have something that tells me if I'm too drunk when I pee on it: My friends. - Colbert.