i don't remember exact cases but he has threatened people who spoke against him in the past multiple times.
but mainly what i meant by "scam" was the identity theft that he pulled a couple of years ago and tried to steal Satoshi Nakamoto's identity which is a clear form of scam. there are other types of fraud that he has been performing including tax fraud,...
Yeah there is that hilarious fact

. But doesn't he still claim to be Satoshi? Even though he doesn't want to prove it and proving it would be simple if he was him. I haven't seen him backed down from that claim.