There is also word-based fl-gging. I don't know whether HN itself is doing it or some users.
If you read some of those explanations and still have a question that isn't answered there, I'd be happy to take a crack at it. What you shouldn't do is take commenters' claims about it un-skeptically, because sometimes (as in this case) they are false.
You also don't explain how 2 posts per 3 hours constitutes a "ban".
I don't understand your second statement.
You seem to be asking about https://news.ycombinator.com/item?id=46694184 and https://news.ycombinator.com/item?id=46691754. Those comments were killed by user flags. That was before we banned you.
The distinction between moderation done by users (votes, flags, etc.) and moderation done by admins (killing posts, banning accounts, etc.) is long established and well understood by the community. It's not about blaming.
But I don't trust you either, and my reasons for being reluctant to flag and downvote are genuine. This is because I've also seen moderation teams who swear up and down that they're not biased, but who later get caught out when they put their finger on the scale through action or deliberate inaction.
But there's another dimension to the unfrustworthiness, because I have also seen moderation teams who don't put their finger on the scale per se, but are so invested in their own rules that they let their community rot beneath their feet from people who have figured out how to manipulate them.
What I've said, and believe, is that of course we're biased, because it's impossible not to be and because unconscious bias is a thing, but that we at least try to mitigate the effects of it, and have a lot of practice at doing so. Are those efforts negligible? I doubt it. I think HN would be a different place if we weren't trying to do that.
To that end, I've actually been avoiding the downvote and flag button entirely. It's handy to close off an avenue of admin retaliation, but on a deeper level I feel like the reflexive race to downvote people you disagree with is the "game" part of gamified engagement.
Besides, if an HN user says something horrendous, I feel like other HN users deserve to know the kind of company they have on this site, instead of tone-policing it under the rug.