Have you ever been on a forum where people are flaming each other, trolling and/or breaking several rules but the moderators/admins do nothing about it?
Yes I know of 2 forums one the forum has been dying for a little over a yr now & in 6 months the forum totally dead. The Admin for this forum only cares about making money off the ads & nothing elese. The other one is the largest forum on the net mods & admin are power hungry & you can be banned for almost anything. Also way to many threads are reported for the dumbest stuff. Forum like these are great for 2 yrs then they slowly die off I have seen like 5 to 7 forum have these same problems said that these things happen.
Some site admins/owners have very lenient policies. I've learned to take that approach myself. Let the members reap what they sow with community justice. Reprimand a member, and you'll be looking at a former member. Eventually the natives will get restless and take matters into their own hands.