"Please respond to the strongest plausible interpretation of what someone says, not a weaker one that's easier to criticize. Assume good faith."
I made no assumptions other than what he explicitly said, which was insulting and displayed ignorance of a community he clearly does not understand. My original comment was also only "People who care about their craft?", which was simply saying that people get into demo coding because they care about doing something worthwhile (getting the most out of their machines in an artistically satisfying and interesting way).
There's a common social anti-pattern in most tech forums of hand-waving away any complex domain knowledge that the person doesn't personally use as "useless". I have no regrets about stating the contrary.
I am amused that I am the one getting a warning about this though. I'm not the one that made a drive-by ambiguous comment that could easily be read as singling out a fun community as being a waste of time. I just pointed out that that's what he just did.
HN has been super impressed and favorable to the feats of demoscene programming for over a decade now, so hopefully there's a lot more of that than this.
There's a lot of things you can learn from writing demos that is still incredibly valuable. I wouldn't expect 99.9% of developers to know those things, but if I saw it on a resume? That'd totally jump off the charts to me and I'd definitely want to interview that person.
Don't shame expertise just because you choose to spend your time differently.