Oh, and the lax application of forum rules is probably due to the "trolling the trolls" effect.
Some troll comes up with a random topic, makes it controversial by personal attacks and the likes, but still staying on the edge of locking. While some reasonable people try to argue with the troll, meta-trolls come and post pictures or make inane comments in order to get the troll angry so that the whole thing gets closed.
The moderator's interest is to go along with the meta-trolls' strategy and not delete their posts (though often blatant violations of the anti-troll rules) - he will be able to close the thread sooner instead of having to watch it for a week before finding a reason to close it.
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For a forum where 25 makes you an old man, it's pretty good.
Of course, from my point of view, everyone who ever used floppy disks for anything else than a history class must also have seen dinosaurs go extinct, but I am under the impression that most regular posters (even the trolls) are averaging around 40.
TL!?
Far from my impression. They do polls there--I wonder if they polled age groups generally?
I remember some age bracketing poll, though I forget the subject, and it skewed pretty young.