Actually I purposely removed the default permissions, in order to make the list only accessible by site collection admins (like the rest of the FBA Pack management functionality). I had noticed that even members could access the list and modify values
in the table. The site collection admins can go and change the permissions on the table themselves if they'd like to allow others to view/modify it.
If there's a problem with my thinking, and you don't think I should have done this, please let me know why asap - as i'm just getting a new version of the FBA Pack ready for release as we speak.