It is called a come on, he only wants the ones that hit him up multiple times for the opportunity to invest.
He isn’t going to bother calling someone that only hit him up once.
Oldest Rule in the book of cons, “Look for the mark that wants to be one”
Dila, if that was the case, why hasn’t he already gone to jail for fraud? Yeah, I know about the Petrodragon affair. That affair shows he was a serious inventor, albeit with a inadequate approach to hazardous waste handling. SFAIK his legal troubles there had nothing to do with fleecing anyone. I don’t see how you can get the conclusion that he was a scam artist from it. You keep seeing only what you want to see, in a very lopsided kind of way. :-(