Hello, new to bitcoin and this forum but this thread piqued my interest.
After a couple of hours, here's what I have come up with.
One of the connections used by the subject (BCM User b4rrydoyle) came from a Netherlands dedicated server company called WorldStream. The contact number for WorldStream is +31174712117
Another connection came from a server belonging to a company called ProXad based in France. Their abuse reporting email address is firstname.lastname@example.org
and their phone number is +33 1 73 50 20 00.
If other posts in this thread are accurate and the subject is indeed French speaking, then it is possible that the French ip address is your best bet.
He also connected from an English ISP "Be Un Limited" using a connection registered to "Jamie Patrick Mcgee" in Slough, UK. I have the phone number and exact address of this connection, however do not wish to post it on a public forum due to privacy and such. If the OP is interested ill PM it to you.
This info isn't too hard to come by, so I'll give it freely, I dont want to be a scumbag on my first post
My suggestion to you is, if you are really passionate about pissing this guy off, phone up and email the addresses/numbers I have given you here. Tell them what has happened, give them the timestamps and IP addresses of the connections the subject used. ISP's and server providers to not like to hear about customers using their connections for nefarious purposes one bit. My opinion is that the subject is using some of these connections as proxies, and potentially without the actual owners knowledge. Letting them know would at least allow them to shut off the subjects access. Unfortunatley, you are unlikely to get your money back, and thats a shame, but if the server providers or isp's shut off his/her connections (if you are convincing and persistant enough, and get enough people who were scammed to get in touch with them) you could potentially cost him more money than he scammed you out of.
At the very least it might give you another lead to follow.
If anyone finds this information useful, my BTC addy is: 1Nt3bZBvcb3zJqT5t6FEe9zacvfDSjwuSj and id be thrilled to get a little donation
If you come across any more information, feel free to pm it to me or post it here and il lsee what I can do for you.