A short thread in explaining why group DMs with media attachments aren’t in Bluesky-the-product.
And, in fact, current 1:1 DMs aren’t part of the protocol.
TLDR it’s a hard unsolved problem, different trade offs (including full centralization like we have now) make it easier.
RE: 
Bluesky Social
Boris (@bmann.ca)
DMs are off protocol.
Making them encrypted, cross-platform including in browser, AND group capable (AND distributed!) are really hard, unsolved p...
