Forum moderators are always a plague lol
It can works on places that are focused on a topic that can be objectively verified, like forum on mathematics. And when off-topic / trolls can be identified easily.
But for more general discussion or social networking, with also generally low budgets, moderators will always biased and take things personally, or even worst will be promoting something and actively orienting discussion.
RE: Non-decentralized Forums are Clusterfucks of Corruption