I think you can sue for any amount you want, just might be not worth it especially for foreign victims.
I google his name and this popped up : http://www.webhostingtalk.com/showthread.php?t=1374482 if that's really him, seems like he has been scamming for a long time.
It's in the post you quoted and also has been posted earlier in the thread. Yes, same mailing address and name, not much doubt here.
Oh shit, didn't see that one. So that's from 2014 meaning that he is basically a pro scammer but why was he paying some members here? Trying to get rep back? We all know even if he paid everyone back he wouldn't have gotten his rep back so why do it?