There is nothing for Foley to shut down, its impossible for him to do much anything about East Asian bootlegs, and technically I think those were around well before Ultracade was.
Those are the exact boards that come to mind everytime I hear someone say "It is only a matter of time before someone starts making Mame stuff for location use, and then we will all be in trouble."
Guess what, those things have been around 5 years, possibly earlier. I have never had one in my hands, but I was bumping into them even when I got started in this hobby.