Threads is officially starting to test ActivityPub integration

Mark Zuckerberg said Threads is testing ActivityPub support that will make its posts available on Mastodon and other interoperable services.

The Verge
@tchambers When they say you “can’t post to Threads” do you think they really mean that a Threads user would have to boost a Mastodon post into the Threads instance? So more just a misunderstanding of how federation works?

@profcarroll
Apparently their plan is to roll it out incrementally -- Evan described it as "First read-only, then with likes and shares, then replies, then two-way follow."

https://cosocial.ca/@evan/111567567468691751

[No, I don't know what "read-only" means.]

@tchambers

Evan Prodromou (@[email protected])

@[email protected] sure. Threads fediverse support is going to be rolling out in stages over the next year. First read-only, then with likes and shares, then replies, then two-way follow. They are mostly concerned about privacy for Threads users, so they won't be federating in ways that put that privacy at risk.

CoSocial

@profcarroll We're all reading tea leaves. My take is that in an early stage posts from Threads will federate OUT, but posts from the Mastodon/etc Fediverse will not federate IN to Threads -- for that early phase. (Which makes sense from a dev POV)
Crawl, walk run.

So replies back to Threads posts from the Fedi, and DM's to Threads users from the Fedi would not be seen by Threads users initially.