I want to remove (not change) my Facebook username, so that my profile page should be accessible from my ID number. Is this even possible?
I can't see an option to remove the name, but you can recover your user id and generate a URL from that. It's a bit convoluted, but if you go to a friends profile page you'll see a link
this will have an URL of the form:
http://www.facebook.com/profile.php?id=[id number 1]&and=[id number 2]
From experimentation it seems that [id number 1] is your number. Though if you find a friend that hasn't set a profile name for themselves it will be easier to spot. Then you can create the url:
http://www.facebook.com/profile.php?id=[id number 1]
You cannot remove your username. Once you have a username the only options are
- Start a new account (most likely you don't want that)
- Change to a new username (you can only do this once)
A third possible (rare) option would be that a Business/entity decides to claim ownership of your username as Facebook reserves the right to reclaim usernames.