Generic dissing of other commenters just adds noise to HN. If you know more than others, why not share some of what you know so we all can learn?
(Edit: I originally wrote "one of the worst ways to add noise". That was overkill; it gets worse.)
(Edit: I originally wrote "one of the worst ways to add noise". That was overkill; it gets worse.)
The part of your comment that added information was fine. It would have been better to add even more information, for example if you had macroexpanded "really good" into what specifically is good.
Generic dissing of other commenters is one of the most common tropes that appears here. Repetition, and especially repetition of indignation, are the things that most lower the quality of the site, and therefore most to be avoided.