The exact wording in the guidelines that I’m adhering to is:
> Have curious conversation
There is no guideline directing me to make my comments relevant to the majority of HN readers. This is probably the most narrowly-focused HN comment I’ve ever made in a decade, though!
It’s neither offtopic nor generic, as it’s focused on the exact post topic at hand, and it says something odd but useful that no one else is saying. That’s the essence of what every HN comment should be.
