Add-on [Idea] Shadow Banning

A feature that would go lovely with Discourage Users would be a feature Reddit calls 'shadow banning'. Essentially, the user still goes about everything the same way, but all of their content is hidden from the rest of the community.

Here is a small description, I apologize that it is somewhat vague:

If anyone is interested in making this, I think large boards might like this feature for those bad users.