Step 1: don’t tell the whole internet that you’re trying to create a torrent site.

This is simply not true. Meta is not duplicating accounts into Threads. Your Threads and Instagram account are the exact same account. You delete one, you delete the other. There is no way to create a Threads account without first creating an Instagram account. And Threads is an opt-in application so you won’t have it enabled for your IG account unless you sign up for it.