I love poor players, thats where I make my money usually. Sure, when the fish calls his flush draw down to the river with odds
crying at the sidelines and hits it, it can drive you mad, but it seems to me the rest of the time he is just handing money over to me, maybe im wrong but thats my outlook.
as for playing too much poker, I think if I overload myself I start to get mentally tired and start making mistakes, so from that aspect I will only play a few hours a day. (who am I kidding, I play 5-6 hours a day if I dont have class)