ad-free spy-free platforms that give you actual control over what appears in your feed
You won't know any of those are ad-free or spy-free (which is not true anyways, fediverse instances are absolutely being scraped), or know you could control those if you left Threads.
All you'll know is, "I like this (Beehaw) thing I'm seeing in Threads, so to see more of it, I should use Threads more.