He's also obsessed with escrow (despite only ever doing 1 trade) and doing deals on Telegram.
I will support your flag and consider tagging him if some more evidence should come to light. I went through his posts and I can't find a single on where he leaves a telegram name. There is 1 BTC address but its kind of a dead end.
Nice catch! I am sure there are more and more of these.
About telegram or btc wallet. I think he is smart/experienced enough do not leave traces like this.
But like a word "tittles" - you cannot change your mispelling habits..