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.”
Isn’t Threads federating with Mastodon, not Lemmy?
The way the fediverse works is that Mastodon Lemmy Peertube Pixelfed and others all implement the ActivityPub protocol. So if Threads does as well, they will be visible from everywhere. (Example: you can post to lemmy from mastodon and vice versa)
Mastodon and Lemmy are linked (you can see replies form mastodon users and posts), and if threads joins then we are all linked.
There is “one” fediverse. Any instance using ActivityPub can talk to any other instance using ActivityPub for the most part. Depending on details, you may get a degraded experience (like mastodon trying to view Kbin wouldn’t work super well). Honestly, there probably won’t be too much federation between Lemmy/Kbin instances and Threads. They’re not very similar in use.