https://ploum.net/2023-06-23-how-to-kill-decentralised-networks.html
Many of us do not trust Facebook and anything it is associated with or swallows up.
EDIT:
"Instagram head Adam Mosseri said "
““Soon, you’ll be able to follow and interact with people on other fediverse platforms, such as Mastodon. They can also find people on Threads using full usernames, such as @mosseri@threads.net.””
“We’re committed to building support for ActivityPub, the protocol behind Mastodon, into this app. We weren’t able to finish it for launch given a number of complications that come along with a decentralized network, but it’s coming,” he said.
“If you’re wondering why this matters, here’s a reason: you may one day end up leaving Threads, or, hopefully not, end up de-platformed. If that ever happens, you should be able to take your audience with you to another server. Being open can enable that.”
That’s the behavior I mentioned in a separate comment that I suggested to be used. And it’s not defederation. Defederation means neither see each other (think TruthSocial not federation with anyone). It’s sort of like half defederated and I think it’s the best scenario if folks want Fediverse to withstand Threads. If Threads users never see somewhere else, they’ll just think Threads is all there is. Kind of how so many people think anything they find here is solely Lemmy. Mindshare is important and exposure is important. If Threads doesn’t moderate well enough, then full defederation may be necessary but it shouldn’t be done based on silly preconceptions and prejudices. See how it goes first.