I think it's pretty safe to say that the majority of us are here to avoid another corporate takeover of our preferred platforms. It would seem to me to be a tad irresponsible to allow Facebook into our space with open arms, allowing them to hoover up our data. I would love to keep using Lemmy.world, but will happily change instances if need be, and I feel many share that sentiment.
I think that interoperation with big walled gardens is part of the reason why #activitypub exists. Furthermore, there are no technical measures to completely shut off #Threads, and the social measures are unlikely to work.
I know the risks, I'm old enough to remember #Microsoft embracing and extinguishing browsers and open documents, #Goggle defederating from #XMPP and #Facebook predatory tactics.
On the other hand, I think that federation with the big players is unstoppable. The protocol is open and there is no way to get every last instance to defederate. If people want to see the big players' content they'll move to an instance that federates with them. And defederating from those that connect to threads sounds like a Zealot's suicide pact.
I think that the best way to ensure that #Meta plays fair is to create a fediverse that is as diverse, open and vibrant as possible, with plenty of open services (Lemmy, mastodon, misskey...) and commercial ones (Flipboard, tumblr...) so that threads users will feel compelled to interact and miss us if Meta stops federating or shadowbans external content.
I don't want everyone to defederate with threads, I just want my server to defederate with threads, or else I'll leave and find another one. But it seems like looking at this post that there's about 80% of people that agree with me here.
My worry with them is that they aren't defederated from hex-bear, but I suppose that they're already updated to version 19, then I can hop aboard and block the ibstance