Unless you have a private profile they can scoop up all of that data whether or not you have a Threads follower. If you do have a provide profile it is pretty e

Unless you have a private profile they can scoop up all of that data whether or not you have a Threads follower. If you do have a provide profile it is pretty easy to deny follow requests to people subscribing from Threads. I don't think this is a major issue, it can be dealt with on a case-by-case basis by the owners of private profiles.