This sort of purposeful taunting is not the way we should treat people even when we know they are jerks.
Why not? What's wrong with treating jerks like jerks?
Umm, because then we're jerks too?
To add to this, I think the more significant problem is that it escalates things. I think this thread is a great example of that. GG may have started with what some read as an arrogant position, but the course of the thread led to him saying hateful offensive things. That's a lot worse.
Also, how is treating jerks as jerks productive? I guess it maybe "reveals" the true jerkiness of the OP, but I don't find that particularly valuable for him or for us. I definitely don't think this means we need to be accepting of jerky behavior, but I believe we can address that behavior without taunting or antagonizing them.
For what it's worth (if anything). I want to point out that I completely disagree with Adam in regard to off-topic chatter (I like it, and actually think it can be productive and even facilitate more dominion strategy discussion), but I think he's right here in regard to the way that people sort of kept pushing GG.