[Whistler]

I believe it basically boils down to the fact, that if your opponents make mistakes you profit in the long run. If you have 6 callers when you are on the button and in a loose game and raise, there is 6 big bets in the pot, because more than likely no one is going to fld. they are getting 12:1 on the flop theres not much that will make "wrong" to call your bet on the flop. But if you dont raise, they are only getting 6:1 to call a bet, which makes a lot more calls the wrong thing to do.