Have you actually seen any of this money? And how do you know that later down the road the govt doesn't come with their hand out asking you to return the money or the bank finds out that the money you received was from a fraudulent account.
Because the money is currently sitting in a savings account I made just for this purpose. It will be reported to the IRS, and that's what the gov't really cares about. This was an experiment, and on a per hour basis probably cost me as much as your entire rig.
Anyway, the money comes from real, honest to goodness accounts in real banks secured by FDIC. No, really. Any dollars appearing in my account were at one point paid in by someone wanting to speculate with bit coins.
This is in no way different than doing FX or even OTC trading.