[poolpool]

How about the shadowbanning or comment curation that admins do?

[DanBC]

As I understand it the admins very rarely shaddowban or curate comments.

Users with karma over 750(?) can downvote and so it's entirely users who are greying out comments or flag-killing comments.

[aw3c2]

Comment curation?

You can show shadowbanned people's contributions by setting showdead to true in your profile. I haven't seen too much admin/mod abuse lately.

[icebraining]

I dislike shadowbanning, but it's not necessarily triggered by moderator action; it's often the result of voting and flagging.