Yeah, there have definitely been some problems in online poker. Ultimate Bet was fixed, and that was found out. Most places probably don't have the capital to pay EVERYONE at once.
That said, most of it isn't fixed. The "I see tons of bad beats"... well, yeah, you see like 20x as many hands per hour, of course you do.
I really wish the US would legalize and regulate. Income stream for the government, we could all trust poker sites more. And because I need my fix.
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My one tangible contribution to LOST fandom and memes:
http://img202.imageshack.us/img202/7392/lapkatefix.jpg