They would go after p2p sales obviously starting with localbitcoins which is operated out of an EU country. For IRC/forum trades they would do periodic crackdo

They would go after p2p sales obviously starting with localbitcoins which is operated out of an EU country. For IRC/forum trades they would do periodic crackdowns posing as phony buyers and arresting/fining the seller to scare away enough casuals that only a handful continue to offer it, effectively shutting down any threat of mass bitcoin adoption to their tax cartel.