Interesting topic Dom!
Great posts by John and pokerseo.
The purpose of participating in forums for players is to share informtion and many a time it will be negative about some operators. A forum owner needs to identify the genuine concerns and weed out the members who raise a flame with malicious intentions. He/she has to make sure that at no point of time free speech by genuine members are curbed. The power of judgement and maintaining the right balance are important along with what has been mentioned by John and pokerseo.
CasinoMeister is the best example I can think of on our industry.