Moderation in this forum.

[Alblaka]

"We are not the parents that should be teaching by punishing." - so you want an empty community?

In all cases, rather have nothing instead of something negative.
Empty is an overstatement in first place, because there will always be those few people never leaving LFE. If necessary, I would still pick only having them, instead of hundreds of members from whom the most are simply spamming around (not saying it currently is that bad, just expressing my oppinion).

You should take a look at the IC forum XD We got only a few rules, accomodated by an instant-ban if you ignore them, but everything else is up to the users. As result we got a large community, no spam, barely flame and an acid pool in the suggestions forum quickly filtering people out.
Sometimes I think I've created a monster, though...