Who am I? I'm a software developer who has taken an interest in the Wikipedia concept. I've created a Wiki-like site that lets users play with a virtual graffiti tool, spraying pixels onto a brick wall or other image. That site, JDoodle, is a constantly changing visual space, mostly inhabited by teenage taggers. It's been an interesting experiment, not unlike a Wiki without rules.
I'm also involved in various water activities, including freedive spearfishing, underwater photography, public safety rescue and recovery diving, and recreational scuba diving.
Several friends with similar interests were looking for a forum to accurately document the rapidly evolving Sea of Cortez fishery, capturing the rich and neglected history along with the current environmental and political situation. Wikipedia seems like just the ticket.
...I can see that this could become an obsession, however.