Nothing gets done about pirates, besides letters. They can ignore those NOUOs and NALs all they want. The FCC and police will only raid one or two pirates a year in the country. This year, one of the raids was in Orlando for a guy advertising drug dealers with his pirate station. Bottom line is, the pirate has to be doing other illegal stuff to get raided. There are a couple high profile pirates in Boston that have been on for years and never been raided. The FCC agents have better things to do. Even if they visit a pirate, the station won't even go off the air after they leave, if they're allowed entry at all.
I wish we could just get a large group of people organized to raid the pirates ourselves. But alas, I'm not too concerned about pirates. The only two pirates I really hated were 87.9 in Newark and 90.1 in Plainfield. 87.9 interfered with my beloved Pulse 87, and 90.1 interfered with 90.3 The Core only 5 miles away from the transmitter and played uncensored rap.