Facebook (no)tification
A (no)tification happens when you get a notification for something that’s already gone, like a post that got deleted or a comment that vanished.
You get a notification about a comment on a post, but the post is gone, and the comment is nowhere to be found.
You get a notification for a photo comment, but the photo is just a blurry mess of your face from 2012.
You get a notification for a post that was taken down for being too embarrassing.