@0xabad1dea to be honest, i disagree, not because it's safe to fedpost in a chat of hundreds of users, but because it makes e2ee itself less suspicious, and more noisy to infiltrate
yes, a fed can lurk in a large member count e2ee chat, but that still involves the effort to join, and possibly even talk sometimes when spoken to. and they'll absolutely not be in every chat.
as opposed to "hey discord let us run grep across your message database"
like, we're at the point for the web where every website[maintained] is encrypted, even if it would be fine for most to be plaintext. (and we got to that point by making TLS pretty much free)
e2ee is only really considered optional/a misfeature in some cases because it's not free, but it should be.