Greetings! I'm in this for the money.
What, there's no money, you say? Ah, nuts. You caught me. I'm an unrepentant know-it-all (at least in certain areas) and Wikipedia lets me be a smart-alek in the obsessively narrow and fairly trivial areas of my expertise.
In addition, my kids, two budding young know-it-alls in their own right, get a kick out of watching their Ma add to and edit Wikipedia from time to time. It's their favorite encyclopedia, and we use it extensively to learn about communal knowledge theory and other topics of interest (they are home/self educated).
Cheers!