Your inbox keeps up with comments, even on a huge account

Nothing to set up. Live notifications from Threads were being matched to the wrong thing and quietly dropped, so your inbox lived on polling alone. They now reach the account that owns the post. The sweep behind them got much lighter too: it reads the last seven days each day, takes one full ninety day pass a week, and no longer asks Threads about posts that have no replies. On an account with thousands of posts that is the difference between an inbox that stalls and one that keeps up.