Spool is a Safari extension that adds a few features to the Threads web app.

With Spool, you can set “Following” as your default timeline. You can also filter posts from certain users (e.g. engagement farmers) or based on keywords (e.g. engagement bait).

Threads like to show me posts from complete strangers, but I think it's rude to mute them. So, instead of hiding posts completely, I added a reveal button to show filtered posts. (Filters are saved in iCloud, so sometimes you have to quit and reopen Safari for the new filters to take effect.) Spool also removes the l.threads.net redirect tracking when you click on an external link.

Since Safari extensions don’t work on web apps added to your iPhone or iPad home screen, the mobile version of Spool lets you turn the app into a simple Threads browser, with your settings intact.

If you use Threads but don’t like their approach to maximizing engagement, give Spool a try. I hope you find it useful.