yes, casinoDOTnet is crazy
remember that most are casino gamblers and find poker boring so they bet way too much to make it interesting and there is also some that don't bet there hands(pure calling stations even with the nuts)

or they are all crazy eastern europeans

I just finished that bonus last week and the swings were very dramatic
up 7buyins
down 9(tilt, alcohol, bad beats, and bad play)
up 3 and got the hell out of there ---doubling my bankroll with the bonus
good luck