So, accounts on #Threads will have to opt-in to #federation with #Mastodon and the #Fediverse.
https://www.threads.net/@mosseri/post/C051TLnud8U
Correct me, if I'm wrong, but doesn't that change the whole debate here? Only a small part of #Threads user base will do that. The majority doesn't know about the #Fediverse, and won't care.
But that also means that there won't be a flood of content/accounts/stuff from Threads here in the Fediverse. For the most part, both will stay separated.