Didnt know this thing has dm feature :D. But you can also find out who it is! With name, face, location and address. You just got to follow the money. Who else uses 101130147 as memo for transactions to deepcrypto8? He lives in the US, so I don't know if you can sue him if he put your private info online. I am not gonna do it, I found him in less then an hour, sure you can too.