If you could ban one crypto scam tactic forever, what’d it be and why’s it the worst?

I'd ban fake ICOs (Initial Coin Offerings). They’re the worst because they exploit trust in new projects, promising revolutionary tech or massive returns to lure victims into investing in nonexistent or worthless tokens. Scammers often use polished whitepapers, fake teams, and hyped marketing to deceive, leaving investors with nothing. This tactic preys on hope and FOMO, devastates finances, and erodes confidence in legitimate crypto innovation.