I'm sympathetic to this argument, but the fact that the blog posts, discussions, tweet threads etc. under issue are publicly viewable (that's the web!) doesn't

I'm sympathetic to this argument, but the fact that the blog posts, discussions, tweet threads etc. under issue are publicly viewable (that's the web!) doesn't imply an obligation that members of the debate perform for the public as if it were a political debate or a court room. I suspect that the intended audience of posts by aggrieved maintainers is other maintainers in the community. Oughtn't they be able to communicate and organise without putting their communications under lock and key? Here we are now discussing it privately on HN and GitHub as we're a bunch of busy-bodies, but I am not necessarily prepared to blame the maintainers for that.