No other user is allowed to edit your user page. If another user edits your personal user page, it might be considered an act of vandalism. Some exceptions to this exist:
An Administrator or Bot may edit an external link or an internal wikilink, to avoid linking out to sites which are classified as "spam", or to link internally to invalid pages. Bots do this automatically, so don't be upset if you have to change a link back or use a talk page to let someone know they erroneously edited your links.
Content that is considered offensive may be removed by an Administrator without prior warning - this includes vandalism by others as well as content you added yourself.
Administrators may create your user page if a link to it shows up in the top ten on this list and you refuse to do so yourself. In this case, the created page will contain a link (not a redirect) to your talk page.
Do not use the White Wolf Wiki for storing material unrelated to the project. Uploaded files that are not directly related to an article will be deleted immediately.