It's not that it's "hackable" it's that it's publicly developed. We could change anything we wanted on there but the contributors tend to get awful whiny when you do that.
There's an entry on my Urban Dead Zombie Group on the Wiki, and originally it was created by a rival and written to make us look bad. Needless to say, we changed it and well that's when they started whining about Wiki rules and changing entries. They however stopped whining when they found out we were the group and so had complete control over how we were represented.
Basically I said, we are the subject, and they shut the hell up. lol