I think it would make sense for certain instances to not block Threads, if people want to keep this connection. But it is always far, far easier to unblock Threads later than to federate now and then to defederate later for big instances such as Lemmy.world. I don’t think the mainstream opinion is “BLOCK THREADS FOREVER!!1!1!1!”, but that we should be cautious anout the risks connected with it. And if Meta will be nice and won’t 3E - nice, then we can federate later on. But as long as that isn’t clear, we should make sure we won’t be overtaken.