You won't ever convince the people here that having your comment sent into the gray is detrimental. Not to mention the 1-9-90 rule[0], meaning 90% of people don't even understand how annoying it is to have a good comment sent into the gray.
According to to them, getting your comment grayed out means its still technically there, so you aren't getting censored by the bandwagon.
They fail to understand that graying out your comment signals to the cursory viewer that it is a low quality comment. Whereas often it is not. You might comment something that is factually right, but goes against HN's vibe du jour, so you get one or two downvotes, and then the larger group starts mass-clicking ▼ without any critical thought.
A much more healthy system would just be sorting comments by vote activity and percentage-positive. It would still make controversial comments slightly less visible, but because there is not explicit signal of quality, no bandwagon effects.
[0]https://en.wikipedia.org/wiki/1%25_rule