Uh i have no doubt if Sony starts banning people then hackers will get around it, they did with the Xbox 360 using Xlink or whatever its called, and Nintendo just don't bother with the Wii. They even warn people not to update if they have homebrew on as it might damage the system. xD
Aye holding back sounds good for now, see what Sony do, if a hack gets stopped, i don't think Sony are above releasing a patch that might damage your system in some way if its hacked. The PS3 is still Sony's property isn't it? Despite us buying it. Thats what the Original Xbox was anyway, in the Terms and Conditions, it says something about you have the console on lease from MS. Wouldn't surprise me if Sony do something similar.
But all i want it for is homebrew and Linux, dont really care for running pirated games. Only about 1 game every 4 months or so that i would want so i might as well buy them.