Reminder about Mastodon "private" messages. Aside from not being end-end-encrypted (and so visible to instance administrators), they CC anyone @-mentioned ANYWHERE in the body of the message (not just those listed at the start).
They are now called "private mentions" rather than "private messages", but if you don't fully understand the semantics, this behavior may be unexpected and/or cause unpleasant side effects.
Sounds like something the developers at @Mastodon should hear.
I still haven't used private messages, and after reading you, I'm glad of it.
Yes, I can see warnings, but designing things so people can shoot themselves and then putting warnings is terrible UX.
I totally agree with "private mentions" and end to end encryption. I assume there must be a reason for this mess, but it is a mess, nonetheless.
At least, they should take the word "private" from the name, because that's the most misleading part of those features.