Personally, I'm a big believer in the KISS principle. We already have a valid html tag to use in "meta rating = "ADULT". Combined with providing linkage to a page like Sex Reloaded is using, those are definitely signs of making an effort.
Love Grandma's idea of 'Provided as a public service by the adult industry'...that's the kind of PR we could use
Getting the FSC to get the word out that we are taking action to assist certainly couldn't hurt either.