That's the kind of thing the ATF 'should' be working on!
I think the large number of scammers from Florida is due to the large number of seniors there. Those scammers aren't just doing gun scams.
I think if I were going to buy a gun from Florida I'd drive there, inspect the gun, then hand him the money in a UPS office as he ships it to my FFL. That way its all legal and you know its on the way.
The Add is back on La sportsman
I'm not sure stirring the pot is the right approach, but I once heard a story where a person who was wronged by a scammer got him to bite again. He sent the scammer on a wild goose chase, and had him waiting at various wire transfer locations. The guy turned it into a sort of pet project, and in the end saw a bit of satisfaction in knowing he at was able to waste the scammers time.