People usually think scammers work in secrecy. In reality, scammers work through broadcasting
Case in point is this fake doctor. They think exposing him will affect him. In reality as more people visit his page, Facebook algorithm will recommend him to more people.
Among those people 99.9% will know he’s a scammer. For example if you do reverse image search, then you’re not his target audience and you will ignore him.
However there’s the low IQ 0.01% with money and no brains. Those will reach out. At that point he will be happy since he knows this idiot fell through all filters and arrived at his dinner table to be eaten.
It’s the reason media and government agencies do not run massive awareness campaigns. The more you highlight an issue, the more likely it is that the gullible will be reached by the algorithm