"subscription" file/folder for IMAP

Hi,

For IMAP users, there's the subscription file in the user's home, and if I try to subscribe more imap folders that are invisible, there's that one, but as it is an file, nothing is supposed to happen.

Is there an way to, allow users to create the "subscriptions" folder without any collision, or just deny or don't show this file as an possible folder (which Is not) to subscribe.

What does people normally do?

Thanks in advanced,