It won't last -- if it even launches with this feature -- pretty sure.
As others have pointed out, most hosts will simply de-federate them pretty quickly anyways, and then it will become a useless feature that they turn off.
I suspect it will be one-way anyways, to capitalize on the existing content produced by Mastodon users out there already while they bootstrap. There's no way they'd offer their own content up into the fediverse without the ability to tie it to ads and engagement.
Given the cold reception they've gotten, it will be interesting to see if this feature even makes launch.
That sounds logical. Federation without conditions would make no sense at all for Meta. You could then run an ad-free Threads copy, create any client you want, easily train your AI on their content.
Surely if such deals materialize, many idealistic Mastodon instances will defederate with Meta. A few big Mastodon instances might not. Next, the idealistic Mastodon instances will defederate with the Meta-compatible Mastodon instances.
Which...makes large Mastodon instances pretty pointless. They'll be largely isolated from the rest of the Mastodon part of the fediverse. They can interact with Threads users, but in that case...why wouldn't users simply use Threads?
As others have pointed out, most hosts will simply de-federate them pretty quickly anyways, and then it will become a useless feature that they turn off.
I suspect it will be one-way anyways, to capitalize on the existing content produced by Mastodon users out there already while they bootstrap. There's no way they'd offer their own content up into the fediverse without the ability to tie it to ads and engagement.
Given the cold reception they've gotten, it will be interesting to see if this feature even makes launch.