What a fascinating issue! No, I have no idea what’s going on, here. It’s clearly some sort of federation bug. The pin request is federating, but the unpin is not.

I’ve checked six other lemmy instances, they all have extra Melbourne Daily threads pinned. They each agree that

1. Mar 22 2024 (Today)
2. Dec 26 2023
3. 26 Nov 2023

Should all be pinned. I don’t know what November and December 26 have in common, I wonder whether they’re Lemmy version upgrade dates? There was one at Christmas time, I’ll have to double-check the exact date.

Beyond those dates, five of the six instances had random dates pinned (though two of them had 01 Jul 2023) still.

This isn’t affecting aussie.zone users.