I hate these guys, too. You just have to constantly remind yourself that you're playing winning poker. Nothing else you can do.
Funny, I'm hearing more and more than very few players actually MAKE money at poker. I know it's true. Guys like this are the reason many of us have a tough time breaking to the good. You can beat some of them, but not all of them. He followed his plan, to buy in small and hope to double up. Sometimes they do, but most often they don't. They think they're clever, but they really aren't.
This can only happen online. He wouldn't make it out of the parking lot at a casino.
Another thing to watch out for, aside from these hit-and-run guys, is the set monkey. They bet any pair and fold if they don't make their set. I don't know if it's +EV, but it's something to watch out for.
CJ
"Are the players better as the stakes go up? It's not an exam; it's a buyin." Barry Tanenbaum