It seems like all the posts converted from Unity Answers where I have answered and somebody else have answered just created a notification.
So for example, I just got a notification for this post:
which I answered in 2015! That’s a while ago. Might be too late to fix that, but uuuh not the best look
Opps, that might be an issue with the whole migrating data and this system being a little too keen on rebuilding its indexes… Apologies