I sadly do this too. Mostly as a time saver. Though many of the articles are not long on here, I find that the comments provide a better and briefer summary, with rebuttals and secondments built in.
I said sadly, as others state, the comments here prime me to read an article differently and influence me. I do not like that, I am human and anchoring is a real thing for us all [1].
In general, I think HN has a good enough and small enough reader base to be able to trust the comments; much like reddit was back about 5 years ago and /. about 12 years ago. Alas, all good things will come to an end. If/when that happens, don't trust the comments again and move on to whatever is next.