New Wordpress users connecting to existing Discourse users

We have about 80 users in WP right now that need to be “detached” from the current Discourse users with whom they seem to be associated. Then we also have about 750 users that we need to import, from our old instance, and be sure they are not having the same issue that we’re having right now.

I was hoping that accounts in WP were linked with Discourse account based on email address as the unique identifier… not external/user IDs.