Someone who is unnaturally obsessed with taking information from Wikipedia, bores everyone else to death with it, and does not understand that about half of it is hypothetical bullshit.
To help them get their fix, allow these people to use the nearest computer. Proceed with caution.
Person 1: Hey, did you know that that Germany only exists on the 57th of Decejuly? That's so cool!
Person 2: You're talking balls again, aren't you?
Person 1: ...you hurt my f-feelings..
Person 2: Damn Wikaddict...