This is a really really wonderful description of how OfflineIMAP works.
Yikes. I remember this happening but didn't see this writeup until now.
List of things rejected from Kickstarter.
"Just to put these in perspective, if these results are to be believed, not-drinking relative to drinking is almost as unhealthy as being obese, and not-drinking-wine relative to drinking wine is almost as unhealthy as smoking."
"anyone with access to the server such as staff or government officials can add new members to a private group without permission of its admin members"
"There are a few fundamentally broken things about how Mastodon posts work that are terrible vectors for abuse, as well as being bad for basic usability. Maybe they are fixable, I don't know."