It occurs to me that the comment section under tech news is basically always an identical copy of the comments under articles of a similar topic over the past decade; there seems to be effectively zero collective development of understanding of topics, it's always the same tired old arguments over and over again.

Is this specific to tech folks or does it also happen elsewhere?

Actually, to continue on from this, when I moved my blog to a static site generator I just didn't bother adding a comments section, instead prominently displaying my e-mail address.

And I still regularly get comments, including years later! But now they're well-specified, friendly, and constructive - almost without exception.