I don�t believe there�s anything dodgy going on. I�ve played at 3 sites, Pacific, Paradise and Party. Paradise is my favourite.
If you play for small stakes at any of those you�ll find some tables where most of the players see the flop with any old crap and stay in until the river and try to outdraw you. Pacific I found to be the most extreme in that way.
If you don�t believe me, take a pack of cards and keep dealing out 10 hands, so that most of the players stay in till the river. How often does your pair of Aces win? Very rarely is the answer!