I remember you because of the about me.

I was reading a somewhat controversial comment from you and then visited your account page probably to check for sibling comments in the same post. Your about me definitely changed how I feel about your comments and probably the source of your recent experience.

I have briefly perused your comments and most of them seem to be interesting contributions. Some of them were definitely downvoted for no real reason AFAICT other than offering up unpopular opinions, and still others appeared to be downvoted for being what I think is a combative tone. You do, in general I think, come across as a bit combative. You have interesting, relevant, and/or factual things to say, maybe consider how what you are saying comes across.

I think you're using an overly broad brush. For example, you still feel it's worthwhile to comment sometimes which implies that there are bastions of useful content, which you don't list. I'm sure we disagree on things, which limits the extent of groupthink.

Beyond that, there's the relative difference between HN and places like 4chan. Nuance is helpful.

It's a bit passive aggressive, don't you think, to do drive-by insults of random strangers?