I sent a nice "Hey it looks like when you updated our page without telling me, I lost the ability to update it. Could you revert the permissions change and coordinate with me in future if you're going to make a change?"
I've been updating the page _for years_ now so it's a bit annoying. But I understand, people are trying to do the right thing.
code4lib.social is a GLAM-themed Mastodon Instance.