Hey,
yes, for example when I change the “Redirect to this URL after clicking in the email” field in the form it will only be stored for new users.
If one user subscribes and then cancels the subscription but resubscribe the change in the redirect url will not take place for him because it is stored in the user table and is not updated in the function create_activate_code().
The same issue is with listIDs. We add some lists via Javascript when a user visits a specific page. But if the user is already subscribed the listIDs in the user table will not be updated.
Please let me know if you need any more information.
BR,
Simon