Oh for sure you can talk about this, it's just a question of how you do it. I'd say the key thing is to actively guard against coming across as personal. To do that is not so easy, because most of us underestimate the provocation in our own comments and overestimate the provocation in others (https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...). This bias is like carbon monoxide - you can't really tell it's affecting you (I don't mean you personally, of course—I mean all of us), so it needs to be consciously compensated for.

As for those other comments - I take your point! I by no means meant to pick on you specifically; I just didn't see those. It's pretty random what we do and don't see.