There’s a few subs I mod that I actually care about on an alt, I just login to mod. But yeah after 12ish years I’m pretty done
And for the record, it was not my choice to keep these communites open, I was in the minority on the mod team that wanted to fully migrate.
Same thing happened to me, it seemed like it didn’t do it when I had just two accounts, but it did do it when I had 3.
Not sure if it has anything to do with certain communities not being federated to the other instances