Like mastondon.world admin said, you can always block the threads.net at user level.
The instance itself will wait and see.
We won’t pre-emptively defederate from Threads. Users can themselves decide to block threads. (If we were to defederate, users can’t anymore decide to un-block themselves.)
We will keep a close eye on all developments with Threads joining the Fediverse, and when we see trouble, we might reconsider this statement.
Edit: mastodon.world not mastodon.social
You should read the trash guide.
https://trash-guides.info/Misc/x265-4k/