I think they dont even know half the rules here anyway.
They're not alone in that. I haven't been around for a while and it seems like there's been an attempt to come up with a more formalised set of rules lately. "Insubstantial posts" is kind of amusing. Half the forum would disappear if those were removed.
I think insubstantial is not measure metric at all. I am not sure who defines criteria there.