For better or worse, this type of thing was almost inevitable when the moderation rules were relaxed last September. We used to tightly moderate, and now we will only step in when there is a clear violation of the rules (and 99.9% of the time people are careful not to cross those few lines) or there are reported messages. The new methods take the guess work out of the moderators hands, and make his actions more directly tied to the will of the majority of the forum. If you see behavior by a poster which you consider out of line, you are asked to use the report button, and we will look at it, and if warranted, moderate the post. And if we see a pattern emerge we'll moderate the member (keep in mind that patterns can be from either the reporter, or reportee, point of view)
The switch to a looser standard of forum moderation and the ability of the members to police themselves was asked for on numerous occasions and was granted roughly a year ago. For the most part I think that change has been for the better and not a problem, yet I regret to see anyone leave, especially someone who gives time and effort to try and improve their game of choice.
It's your forum gentlemen. We just clean up the broken glass after the bar room fights. When you're out bending the elbow with your mates in the real world would you let them stumble into a fight, or would you try and convince them it's not worth it? I know the type of people I would drink with.

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