Normally i'll just suicide a few accounts to make money for my main, but I've never just went straight from nothing to a permanent ban. Out of every account I've ever had the ban's start at 2-day. I change my IP every day (basically have too). Is it just f2p accounts that go straight to perm?
I was using a free mining script (don't give a shit about getting banned on a throwaway) and from experience that normally gets you banned pretty fucking fast just for those curious.