Yep, of course.

I find it stupid yet reasonably justifiable, and there's been a movement to move away from the MPAA ratings on fic anyway, just on the basis that they don't work very well. I don't generally use them unless it's required by a fest or archive anyway.

I do wonder what it says about our society (or possibly just subculture) that we have a slang term for getting hit with a C&D, though.