DMs on Bluesky will not be "end-to-end encrypted" until we are able to do some more protocol work.
We have very careful access controls within our systems.
If you're extremely privacy conscious, I'd recommend using Bluesky DMs to share your Signal accounts!
What's next for Bluesky? We're working on some of your most requested features:
DMs, video, improved Custom Feeds, better anti-harassment features, and a new login tool called "OAuth"
Check out the roadmap here: bsky.social/about/blog/0...