When Meta launched their new Twitter competitor Threads on July 5, they said that it would be compatible with the ActivityPub protocol, Mastodon, and all the other decentralized social networks in the fediverse "soon".
But on July 14, @alexeheath of the Verge reported that Meta's saying ActivityPub integration's "a long way out". Hey wait a second. Make up your mind already!
From the perspective of the "free fediverse" that's not welcoming Meta, the new positioning that ActivityPub integration is "a long way out" is encouraging. OK, it's not as good as "when hell freezes over," but it's a heckuva lot better than "soon." In fact, I'd go so far as to say "a long way out" is a clear victory for the free fediverse's cause.
It's not only about ignoring Facebook users. Imagine in real life a bully comes to your group and you could block him, so you don't see him, but he still influences the people around you in a negative way, changing the environment you used to love. You better make sure he stays out of your circle. Facebook has a long record of destroying other social networks.
So you want to take away the choice from others? What's stopping those same influenced users from being influenced already? They can simply download the app right now, it doesn't need to appear on their Mastodon or whatever feed.