Yeah, Megaupload was THE place to keep your vids for a while but IIRC that all dramatically collapsed when they had a huge copyright crackdown right in the middle of Festivids, meaning that there was a mad scramble to get all the vids back up so that their recipients could see them. And then the site was shut down entirely shortly afterwards.

I think one reason a lot of people turn to YouTube these days is that there's SO much on there that if your vid doesn't immediately get copyright flagged, there's a higher chance that it'll just fly under the radar due to the sheer volume of stuff.

That said, I think there's also a much greater openness towards vids generally now than there was ten years ago. Showrunners and cast members share them approvingly, and most record companies are much more relaxed about folks using their music as long as they can get appropriate credit (and in some cases monetisation.)