Well, I tried doing this myself — I created a taxonomy called “ure” and added a term to it. Then appended term_id 969 to all users’ meta value of wp_ure_categories_list.
I then added a function on my functions.php that auto-assigns term_id 969 to the post, and hooked it into the filter wp_register_post.
It did NOT work — the message “You are not allowed to edit this post.” continues to show… 🙁
