Betcoin is good but Its really hard to believe that they really have that many users playing on it on a given time...I suspect some r bots...I like SWC in general..pretty good..but really tight.
Betcoin is part of Winning Poker Network which is a network of poker sites that share their pools of players. Betcoin's mtt's and sng's are shared with WPN so that's why they have alot of players on. Cash games on Betcoin are only for Betcoin players they don't share cash games with the network.