Moderators, if people are consistently insulting, lack any substance and are simply trolling, warn them once, warn them twice and then kick them off. After all, any dissenting position gets excommunicated from ECW!
I agree with much of what you say. I would add that there's a world of difference between trolling, where innuendo and insults of various kinds are used, and claims are repeatedly advanced that are conclusory, on one hand, and points raised by people who have genuinely dissenting positions, on the other. In the middle are those who do a little of both; as long as there's a decent signal to noise ratio, it's possible to filter out the silliness. There are people here who lie at the polar end of the trolling spectrum, and to get any signal out of the noise is exhausting and nearly futile.