Yeah sadly it seems like most people making threats are full of bs. To be honest trying to talk sense into him the easy way doesn't work so unless someone teaches him a lesson nothing will happen and posts on the lending subform will be full of scammers or joey asking for money under multiple alts.
Suing him would be the ultimate lesson. No one's given me a good reason as to why they haven't, other then it's too little an amount to be worth it. Not too little to waste time and gas money sending him pizzas...
If someone would make a gambling loan for the LuLz, why not sue him in small claims too. You can do it for $100 I'm sure. The only thing is, how bitcoin works in small claims court.