We don't really have — or want — more than our basic rules about how to answer. The only rules we have are very basic: it has to be an answer rather than discussion or gibberish, and it has to be at least somewhat on topic for the question. Any more rules layered on top would just be undermining the role that we've given to voting.
(We've tried adding rules on top for a few question types in the past, and it has invariably gone badly, with the system helping us to enforce them not at all. Overall it's better to not try to get in the way of voting taking care of answer quality.)
So we really shouldn't have rules about whether Rules As Fun / Rule Of Cool is okay or not in answers, or how such answers should be specially handled or written. It likely won't help, and may well make the site work less well.
Instead, I think we should do what we do best: vote our conscience on each answer on its own special merits and fittingness for the question. Good RAF answers would get voted up and bad ones voted down, and middling ones would float about in the middle.