I think we do need rules, but we can do without rulers.

When I play a musical instrument I do it applying all kinds of rules that I've acquired - rules I've learnt from other people, or learnt from practice. But noone is going to tell me what to do and what not to do in a controlling way.

We pass on wrinkles to each other about playing music, stuff we've learnt works. That's different from laying down the law.

That's more or less the same way the Mudcat works a lot of the time. I was making a suggestion in this thread, not attempting to formulate a commandment.