Very reasonable question, albeit awkward to answer because making predictions about other people is kinda rude and kinda creepy.
I certainly don't expect Lumifer to stop enjoying being snarky at people on LW. Neither do I expect him to make a radical shift from doing whatever he finds amusing to some kind of optimization of everyone's net utility. But I do think it's possible that he will make a small update to his estimate of how other people react to his snarky dismissals, and that there will be a small corresponding change in behaviour. That would, in my judgement, make LW a marginally better place.
I also hope that some people who are upvoting snarky dismissiveness may become slightly less inclined to do so. I don't at all begrudge Lumifer his upvotes, but I think he's often getting them for the wrong comments. More to the point, I think an environment where snarky dismissiveness gets lots of upvotes will encourage other people to move in the snarkily dismissive direction, which I think would be bad for LW.
Ok. Assume, for a moment, that Lumifer is judicious about when to be snarkily dismissive - that is, he is snarkily dismissive when he thinks it is the appropriate response.
In that case, would it be fair to say that the issue you take is not necessarily with his snarky dismissiveness, but rather his skipping the intermediate mental steps in explaining why somebody is wrong? That is, he is making leaps of logic that the audience can't necessarily follow? (This might explain some of the upvotes, as well; they're not upvoting his snarkiness, but his dismiss...
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