I regularily don't check emails for hours at a time, and would really apprciate someone publicly "calling me out" if I were to forget disclosing a CoI. And I am sure we could as @dang for how quickly impressions drop off on HN specifically. Reddit is the most similar platform and there, a topic usually is active for a few hours at most, so after that window, the disclosure would be practically useless.

And how is stating a disagreement bullying? You can just disengage if tgis is that unpleasant to you.

Sure, it'd be nicer to privately do it, but IMO in such cases, informing the public is the more important part rather than being nice. (There were no insults, no accusations of it being intentional or such, which I'd personally count as nice enough)

Or do you believe we have to coddle everyone online? (I am being serious, and do not intend to troll, but can see how it can be taken as trolling)