I'm a bit rusty on using support forums, so pardon me if this is the wrong category (I've gone back and forth between #feature and #ux several times while drafting this).
I'm relatively active in a forum that uses the chat plugin, and occasionally there are other users that I mute temporarily during ongoing discussions (not that they're necessarily disruptive, but to hide higher frequency posting of media and separate topics so I don't get distracted). I recently noticed that it's pretty inconvenient to set a user to Ignored when their public profile is hidden^[it took starting this post for me to find the solution to doing that at all, since I had missed it being in user preferences at first, much obliged to this thread], and figured I might as well suggest adding an activity notification dropdown below the Message/Chat buttons on the User Card, given that those options still remain on hidden profiles.
Discuss this on our forum.