That's called dumping and they watch pretty closely for that.
yeah it can get to being a pretty hairy juggling act, but if you lose to more people than yourself you'll be alright, and of course don't keep doing it, that's completely obvious. But all in all it's a pretty hard way to make GOOD money for more reasons than that. You have to have a transfer account that can handle the higher stakes tables in the first place.
Trust me. Unless you wanna get ZeeJustine'd, don't dump at the poker table.
Yeah, but it seems like that was that guy's only hussle, I mean come on why the fuck would anyone think that if they kept doing that they wouldn't get caught. It's pretty obvious. I.P. addresses, log in names, Bank accounts, date time stamps, or even the occasional bank and/or ATM camera would be enough to catch anyone. Look, I'm not condoning this as being away to make a living, unless you would like wearing a state jumpsuit. But it has, and is being done on a daily basis. I've never seen anyone in my circle of friends get caught, but they're not fucking retarted either, or impatient. As with most things it seems that the proper appllication of time, risk management(use cases), and common sense will prove to be the most effective tools at the disposal of the would be carder.
Edit: Formatted for readability. You're welcome.