That plugin was built in an afternoon. Expect bugs
The last resort for dealing with trolls that just won’t go away
It blocks the notifications, and it blocks the post from showing up in topic view. And it shouldn’t be possible for the user to tell they’re shadowbanned unless they try.
The list of shadowbanned users is stored in a setting with the usernames separated by
|s. There’s probably a better way to do it, but I’m not sure how.