The commenter probably meant to say "enjoy your circle-jerking
effect" ... :) Because it's the
effect that they care about ... notice how silly that sounds, while not really effectively communicating, instead just getting your hairs up a little (maybe).
For the record, I don't agree with that commenter's opinion. And I also believe your actions on these moderation issues are well-intended (plus you're doing a great job, probably especially on the invisible parts, kudos).
But for all the talk about not throwing oil on the fire, maybe it's smart if you then also refrain from calling people "trolls" or "trolling" when they're not intentionally doing so. To use your words, it signals bad faith. Especially if you consider that such a person is probably in a bad or angry mood[0].
In fact, I don't think "trolling effect" is a very good term to use either. That's probably because I carry a sort of romantic idea about my dealings advanced and skilled trolls. Similar to how many people here feel about the term "hacker". Yes there exist criminal hackers, just like there exist mentally insane unstable bad evil trolls. But there are also performance artists[1], or you know, memetic/social hackers. Still not always good, and almost never welcome. They can use their eristic skills to make stuck up people lose face and/or their shit. They can bring to light collective hypocrisy by placing a very careful wedge in a community. Same reasons we need comedy, satire or jesters. Or just cause a scene for the art of it. If they wanted to, they could "set this place on fire" without snark, polemic or even knowing it was them that caused someone else to push a button and whoooommff.
Just like you don't call someone who steals your USB-stick a "hacker" but a "thief", someone who uses polemic swipes and snark because they angrily voice an unpopular opinion on HN, is not (necessarily) a troll. And to them it comes across as if you're just calling them names, which does not create listeners.
Just call it what it is. The "trolling effects" you talk about have a proper word actually, and are called "flame wars". Even better would be if you'd take some of the well-worded snippets from your post above (and possibly previous ones), for copy-pasting the relevant bits, because well it's not really more than about five typical situations on HN, is it?
Since you want to affect this person's behaviour, it helps to be specific, instead of using a catch-all term like "trolling". Pointing out "snark" and "polemic swipes" apply in this case, because that's undeniable and you can quote the words. Calling it "signalling bad faith" is a very bad idea for hopefully obvious reasons[2].
Finally, about your last paragraph. Of course you don't want conformist groupthink either. But just like the so-called "troll", your intentions may not line up with what effects you're causing. Depending on how carefully you tread, you may in fact be inciting groupthink, and ironically this attracts (proper) trolls because they love poking that kind of self-assuredness.
[0] often unrelated stress, but triggered on subjects they feel strongly about--I get this myself as well, but I usually manage to write such words in a textfile, that I keep in a very private very angry folder somewhere (throwing away the vitriol is less cathartic to me, and sometimes there's some useful eloquent bits that come in useful at a calmer moment).
[1] still not welcome here on HN, which I understand, but more for the same reasons why reddit-style pun-threads are not welcome here either.
[2] Because (especially in their eyes) they could say the same about you. Also snark and polemic swipes seem to be called out a lot more consistently when it involves "unpopular opinions on HN" (which exist), I notice this myself, even though I strongly oppose most of these unpopular opinions. And that, by itself, can in fact be considered quite rightly as signalling bad faith. So take care.