I'm new to here so maybe I'm missing something. But why is it a problem if people from the fediverse can communicate with people on threads? It shouldnt negatively effect people on Mastodon right?

Yes the article is showing that meta likely wants to control people in annoying ways but isn't that only an issue if you're a Threads user? It's cool to be able to talk with people in Threads from Mastodon as long as you don't need threads yourself.

Of course they haven't actually connected up threads yet as far as I know.