Nice to hear you were lucky not to fall for this scam!!
Btw, so how is it that these guys are knowing your contacts of business because these aren't people that are disclosed to the public... Unless these people start with those funny messages in the official chat group of who do I contact for marketing purposes etc and when directed to the right person they now execute their scams and impersonation...
I suppose besides the Admins don't PM you first, I think bitcointalk PM authentication should help clean this mess, unless chat history exists then one can keep the conversation going.
Report sent!
I and many others now can suspect that this scammer is from Telegram inside. It could be an ex telegram official or current official who is working in telegram. There are no other way to know private information or at least some information that were not shared in public. Someone can guess about something but that guess can not be very specific and live.
To pay me ask a signed message from a known address on Bitcointalk.
I added it on my bio. I also added a warning for any new member who will join my Telegram group. More and more people need to know about this scammer and may be someone can inform telegram official about it too so that they can launch investigation to find the scammer.