Not sure if this is a bug, more of an exploit, but here we go.
You can view any character's profile by typing their character number into the URL of the showcharacter line.
Example - my character number is 97, so to see my character profile you would type: http://www.darkgrimoire.com/showchar.php?char=97 into the Address box.
I thought that the idea was that you should only be able to see a characters profile if they were in the same location as yourself.
Curiously, it seems that a lot of characters don't have names...