Be careful sending this guy any information...
Why? I did send him some info about a guy who scammed me, although I doubt he will succeed in extracting the owed money I think it's at least worth a try. I have contacted two other people in the past who offered similar services and they weren't able to help me. It's not like I'm giving him any personal information about me (apart from BTC addresses maybe).
Nothing to stop him from collecting your debt in full and paying you nothing. Get an agreement first, don't just send information.
I agree but I don't really see how I could protect myself, at most I can have a non-legal agreement with him if I don't want to share my own personal information. It's a bit like theymos trusts a few forum members to store the forum funds — it's mostly based on trust that they won't run away with the money, not on a written (non-legal) agreement that would be very difficult to enforce should one of those people decide to run with the BTC.
