The political model doesn't work at all. If you just count the votes of the people who show up to vote, the Party will hire buses and empty the retirement homes and homeless shelters. Maybe you can fight this irl if everyone knows there's an election, but nobody knows when there's a war on a talk page.
If I just want to know some dry facts about Podunk, BFE, it'll probably have them right. But maybe not, if the mayor of Podunk wrote the page and is trying to promote the town, or if it was last edited by someone who used to live there and hates the place. And very few people are going to check the talk or history pages to see whether there's been an edit war or other hints that the page might be sketchy.