I'm not sure exactly what's true, but supposedly the bridge from threads to activity pub is one way for now. They can publish, but can't see comments from fedi just yet. I'm sure what gets through to threads is going to be filtered to the extreme, but it's still kinda interesting.

On the other hand, The first worry that pops into my head is meta doing loads more data harvesting via fedi. I know nostr is not private, but I left shit like Facebook *because* I don't want my data abused.....so I'm not sure how I feel about a bridge from meta to fedi and nostr.