[Most of this is meta-discussion. At the end of your comment you said something that wasn't. If anyone else is actually reading this, they're probably more interested in the non-meta. They should look ahead for the next comment in square brackets.]
Trying to extract an apology
Perhaps I wasn't clear enough. Obviously you are under no sort of obligation to apologize when criticized. But if your reaction is that you
then it seems reasonable to point out what's going on.
through harassment
Harassment? Everything I have written in this discussion has been in direct response to something you wrote. I have not threatened you or insulted you. I seriously can't imagine what I have done that a reasonable person would describe as harassment.
has SJW written all over it
If that's what I pattern-match to in your brain, I'm not sure there's much I can do about it. (I am with SJWs in so far as they stick up for groups that tend to get treated badly; I am against them in so far as they end up abusing other groups, treat everything as tribal warfare, and/or employ blatantly stupid arguments in doing so. Make of that what you will.)
Might as well not chase me into the afterlife for it
Good grief. I criticized something you wrote. I responded to your responses to the criticism. When you said you don't like being criticized and asked me to stop, I said "I'll stop if you will" and happened to mention that you had neither justified nor retracted what you said. That's all.
what kind of behaviour towards me I will or will not tolerate
It appears that you will not tolerate (1) criticism and/or (2) not being given the last word merely because you would prefer it. You might want to rethink that.
a milder form of declaration of enmity
I think your enmity-detectors are oversensitive, and I think that given how this discussion began you've got quite a nerve complaining that someone isn't being friendly enough towards you. To put it explicitly: I do not in any way regard you as an enemy (though I am wondering whether I should given your remarks about enmity here), I see no reason whatever why we should not be allies in the future, but I strongly disagree with some things you have been saying in this discussion and how you have been saying them. That's all.
[Non-meta here:]
as it happens I don't believe that
OK. That's better than the impression I got from the way you began:
If anything, not being able / advised to discuss any of the above topics reflects significantly less rationality than the average person [...] the best thing I could say about a crowd that would abide by such norms is that they have a highly lopsided intellectual development [...] the failure to handle banal conversation topics like pop culture or humour casts doubt on the truth or intellectual value of the things such a crowd does accept to discuss
which was (at least to my reading) all about the cognitive failures one could infer from requiring those limitations.
(If your argument was intended to be "We'd only need those limitations if we had Bad Characteristic X, but obviously we don't, so we don't need the limitations" -- with the second half of the argument so obvious as not even to need stating -- then I submit that it was a mistake to choose for Bad Characteristic X something that (1) LW documentedly exhibits a way-above-average rate of and (2) LW folks have more than once been attacked for in the past.)
For example, what would be inappropriately off topic to post to LessWrong discussion about?
I couldn't find an answer in the FAQ. (Perhaps it'd be worth adding one.) The closest I could find was this:
However "rationality" can be interpreted broadly enough that rational discussion of anything would count, and my experience reading LW is compatible with this interpretation being applied by posters. Indeed my experience seems to suggest that practically everything is on topic; political discussion of certain sorts is frowned upon, but not due to being off topic. People often post about things far removed from the topics of interest. And some of these topics are very broad: it seems that a lot of material about self-improvement is acceptable, for instance.