If you want to know why Threads is going to fail for the average user I have the answers.
I posted morning quotes, a bird photo, space images from Hubble & Webb, reposted comments, replied to comments on my threads, followed, followed back, blocked a couple idiots cruising for love in my comments etc.
For these activities I was labelled a bot. Just opening the app got me this message and I was locked out. Two days later I followed back an old Twitter friend and was locked out again.