http://enworld.cyberstreet.com/news...cat=4&categories=Messageboards&parent_id=0#17 is the link to the official answer on this.
It does get tossed around at the highest levels now and then. But ultimately it comes down to whether we as moderators and administrators want to take on that additional type of moderation. The choices, as I see them, have been:
1) Ban off-topic posting completely -- benefit: easier to moderate, drawback: less community spirit and not as fun.
2) Create an off-topic forum -- benefit: clears out the clutter from General and other forums, drawback: encourages more OT posting, sort of signals "anything goes" type attitude for that forum and would be prone to more religious/political discussion even if we say "don't go there," would make moderating more difficult overall.
3) Status Quo (some vague amount of OT posting is tolerated in General) -- benefit: somewhat easier to moderate because anything OT by definition could be subject to closing if it gets nasty and without much need to warn/cajole/attempt to keep things on track), contributes to community spirit for those who are interested in knowing more about fellow posters; drawback -- clutters General now and then when people go overboard.
None of the solutions is truly ideal, so ultimately it comes down to what Morrus wants to spend his time and resources on.
All that said -- I agree, it's getting a bit much in General at the moment so it's probably time for an announcement to that effect.