Alright, let’s keep this productive, and help poor X-Men Utopia out by removing this from their thread.
The core question: Should character information live on the wiki only?
I say a staunch no. In situations like a scene or when I’m new to a group of people, it is tedious to have to look each one of them on a wiki, even using a client that can recognize a URI and create a link out of it, most of the time it doesn’t work, this assuming the player has taken the time to enter the correct information.
There are ways to mitigate these issues, but none of them are as easy as typing +finger bob.