Quote from: Patatas on December 01, 2018, 03:15:48 PM

You may ask them to sign a message from one of their oldest posted address

That is not what worries me here. They posted this:

Quote from: rikfredsy on November 11, 2018, 09:42:15 AM

~
Thanks

My telegram is David91BTC

I am not sure should I post result of my little investigation unless OP wants to move thread to investigation, as it include some personal information but anyway person from that picture seems to be someone else, and I have found different information on twitter, linkedin and paxful(including account with high positive rating).