I think you may be underestimating this issue. It is leading to one of the most heinous and vile things someone can do on an internet forum, shadow banning, akin to putting them in an isolation cell; only worse worse, basically transporting them there without even letting them know they are/were put there and users keep commenting and contributing while being essentially locked away and lost in an authoritarian prison cell where no one can hear them. It's downright sick and depraved and one of the worst practices of the tech sector today for which there is zero justification regardless of what unapproved things were said.
There is a real sickness on the net today where "moderators" have come to think of themselves as the thought police, but even worse, not just thought police of an authoritarian regime, but a kind of self-anointed little dictator that rules over the user rabble at will and upon whim.
If you want to silence people, at least have the spine of any other run of the mill authoritarian and tell users their fundamental human right to speech and expression was taken from them … don't just silently transport them to digital purgatory. Again, it is a vile act that only the most depraved people would excuse, let alone endorse, no matter what unapproved things were thought and said … which are only words/characters on a screen that can be dismissed and ignored.
Ok, I've said my peace. It's a sick and depraved practice and I cannot stand by just not say something when the topic comes up while digital regimes like HN, reddit have, what are essentially digital version of hellish totalitarian regime isolation cells that "mods" disappear people/accounts to.