The false decorum/hypocrisy is palpable: I don't see how a dismissive/flippant link to a generic stack exchange post is any better in terms "quality response".

It's not a personal attack via crappy internet trope, that's the hopefully-now-obvious difference.

Sure but it's just as dismissive. At least my response included more reasoning in addition to the crappy Internet trope.

You can't escalate to edgelordery just because you read something as dismissive, at least not on HN. Or in npc-jargon terms, Snowflake Edgelord is not a valid alignment/class combo.