Glitterdown, there are two reasons why the general discussion forum isn't moderated as strongly as the general support forum.
1) The two most "aggressive" currently of the moderators are Anthony and myself, because we practicly live in the forums as of late. However, he and I don't have mod priveledges in General Discussion.
He and I did discuss moderating this thread recently, and acquired the assistance of a player with the capability of doing so. This has been the only recent moderation in General Discussion that I'm aware of, and it was my posts and Anthony's posts that were moderated. So, at present, the posts of moderators in General Discussion have actually been moderated more aggressively than those of other players.
2) General Discussion isn't critical to the game itself, whereas General Support is (and also Suggestions to a lesser extent). I'm heavy handed in General Support because the players who take care of problems need to be able to see at a glance what the issue is, so that it can be fixed more quickly and with less stress. That puts all of us in a happier position.
Your allusion to the issue of going of topic is valid. One task of mods is to watch for that and to take care of it, which can be done by splitting the topic or simply encouraging players to not go off-topic, etc. However, General Discussion traditionally has a relatively laid back atmosphere, so moderating for on-topicness is usually not practiced unless a player requests it. So, it's not that mods are treating non-mods differently, it's that nobody's being moderated for topic relevance in most cases in this particular area of the forum.
The "ll" in my above post was my equivalent of deleting the post, which was and effort to "clean up" a bit.