Gregory's ServerTwitter is shadow-blocking tweets with Substack links.
You can tweet links but nobody can interact with them, most likely to prevent amplifying content.
Translation: Some reporter is probably publishing something bad about Twitter or Musk in the next few hours or days.
I also see Twitter removed the option to self-revoke my "Verified" badge.
This means all those bot networks, right-wingers nutjobs, and Russian propaganda accounts that buy Twitter Blue are basically abusing the reputation that legitimate accounts built for the Verified badge to spew their non-sensical garbage.