The mysteriously increasing "Discussions" counter
If I go to "My Discussions" in the Quick Links box, I can see 18 discussions that I started, the most recent at the end of April. Ditto if I click my silhouette/picture at the top right and choose "My Discussions".
If instead I go to my profile (by clicking the silhouette/picture and choosing my name) and click on Discussions there, it at first shows me 2 (!) discussions, but if I click "more" a gazillion times, it'll eventually deign to show me 36 threads. (Six of those aren't actually threads I started, but leftovers from preceding systems where I replied to a question with an attached image.)
So in other words, the system is aware of at most three dozen threads/discussions "belonging" to me.
Yesterday, the count (in both My Discussions and Discussions) was 60.
Today, it's 62.
I have been observing the slow creep for months now, but I have yet to figure out any pattern or rhyme or reason to it. I have no idea what action on my part causes it to increment: I do everything exactly the same way, and sometimes it has gone up, sometimes it hasn't.