There's really only one official rule in Games and that is indeed listed in a sticky thread (yes the one that's only been viewed
1,266 times since January; compare it with week-old threads with 10x the hits). It's a common sense rule, such that violation thereof is generally either an act of stupidity or naivety. And as is usually the case with common sense rules, those who most need to read them aren't going to and perhaps don't care.

So what's a moderator to do when much of the traffic is by spoiled adolescents, many of whom appear to be only partially literate?

Well, on the one hand it fortunately wouldn't be much of a loss to the community if they were banned; however, it needn't end in carnage: if you see someone breaking the rule, feel free to send them a message reminding them of the rule and suggesting they edit their post. That way everybody is happy and nobody has to get gruesomely killed.

If you're not that nice, you can still help out by reporting offending posts so that they can be dealt with.