I gotta admit, I am very much enjoying @ghost's ActivityPub progress newsletter.
Last week they were having an existential crisis, this week they're saying it's our fault as the users, that ActivityPub is so hard.
(I'm paraphrasing the most dramatic part without context for the read receipts)
Tumblr promised ActivityPub support and then disappeared for 2 years. Ghost promised ActivityPub support, and then their engineers appear each week to tell us how they regret that decision. #activitypub