I've been hosted with Go Daddy for several months now and was told that they hosted adult websites. Anyway I haven't had any trouble with these guys and their service has been good so far but I don't like the idea that they have a no porn clause in the usage agreement.(I should of took the time to read the fine print).
Being forced to move at the wrong time sounds like a big pain in the ass and in the long run its probably better to host with an adult friendly provider.