I'm sure you've banned others, too. I read with showdead on, and I'm seeing a pretty clear bias in who's banned and who's not. Sure, it may be that right-wingers just can't behave, and I certainly see some of those. But others are perfectly fine comments, and checking their comment list, they write plenty of those, yet they still got banned. The communists don't get banned, and I can't recall seeing an obviously left-wing comment that was reasonable (aka not "you and all other rich people should be shot") and dead by default.
Maybe there's a secret part of HN where they're posting and they're all banned, but I doubt it. Your house, your rules, but it certainly looks like these rules are a bit bendy, and having banned some crazy person with a Bernie quote on his profile makes you believe that you're applying them evenly when you also ban someone like this here, who just comments from a somewhat right-wing position and is rejected by some part of the community because of it.
Can you link me to specific examples of accounts that you think should be banned and haven't been? or of accounts that have been banned, which shouldn't be? I'd like to take a look.
I'd also look at links to specific comments (i.e. dead and shouldn't be, or live and shouldn't be). But that's less relevant because we have to evaluate these things at account level, not post level. For example, banned accounts can post good comments (and we hope users will vouch for those - https://news.ycombinator.com/newsfaq.html#cvouch, and we unkill them whenever we see them), but it doesn't follow that the account should be unbanned. That depends on the overall behavior of the account.
I can't imagine how anyone thinks that HN has a left bias, I've seen open transphobia that doesn't so much as get flagged, when doing it on even centrist platforms would earn you a permaban.
Maybe there's a secret part of HN where they're posting and they're all banned, but I doubt it. Your house, your rules, but it certainly looks like these rules are a bit bendy, and having banned some crazy person with a Bernie quote on his profile makes you believe that you're applying them evenly when you also ban someone like this here, who just comments from a somewhat right-wing position and is rejected by some part of the community because of it.