I've noticed that for each 100 people that view a SO question, you'll generally see about 0-5 people that vote, up or down. That doesn't seem like a very statistically relevant ratio of opinions on the quality of content.
Why do you think that is?
Do people realize that for every upvote they give out, by percentage each point of their reputation is worth slightly less? After all, your reputation is just a number, if you have 1000 rep, but every other member has 20000 rep, you still don't look very good.
Do they not have the knowledge to know what's right or wrong either way? If so why did they click on the question? Are these people the ones looking for the same thing off of Google? Is the tagging system not clear enough?
Are some people just lurkers by nature? I know people IRL who see every post on Facebook, but like and comment on nothing, and the same with Reddit.
Wouldn't answers be more reliable if more people voted on what they agreed with or disagreed with?
I'm curious to see other people's thoughts on this.
Edit: I guess that's cleared up a bit. After taking views that can't vote out of the question, if everyone votes on what they agree with, easy answers everyone knows get people more reputation for answering them than hard/interesting questions only a few can answer. And that doesn't seem fair if you're playing Stack Overflow as an e-penis measurement game.
Stack Overflow works because it's a game, and if a game seems unfair, the players are unhappy and stop playing. So the system works. Thanks everyone :)
Also, I got people to vote. Ahaha.