User blog comment:SonikFan112/Now I'm Scared/@comment-2155644-20101022011919/@comment-396366-20101022012419

Not really. Protecting your page doesn't really do anything other than not allow others to edit it.

Protecting pages from people can only be done so in groups. It is not possible to protect your page from a user, but you can have your page protected from all non-administrator users.