[There's not really any sort of "rule". It's just one of those netiquitte things that I've personally seen as a generally understood concept on pretty much any BB I've ever participated in. So, nope there's no rule. And to be honest, I don't see a need for one.
That said, I prefer that moderating be left to the moderators. And while I appreciate the efforts of members on this and the other thread in trying to educate Ryan, simply sending the mods a PM or reporting a post is the more appreciated way to handle matters of BB policy.
Thanks,
Duane]