https://en.wikipedia.org/wiki/Shadow_banning
> Shadow banning, also called stealth banning, hellbanning, ghost banning, and comment ghosting, is the practice of blocking or partially blocking a user or the user's content from some areas of an online community in such a way that the ban is not readily apparent to the user, regardless of whether the action is taken by an individual or an algorithm. For example, shadow-banned comments posted to a blog or media website would be visible to the sender, but not to other users accessing the site.
This part matches shadow banning voting and is basically the same what I wrote in my previous comment just using different words:
> partially blocking a user or the user's content from some areas of an online community in such a way that the ban is not readily apparent to the user
And this part, which contradicts what you wrote in your last comment:
> More recently, the term has come to apply to alternative measures, particularly visibility measures like delisting and downranking.