See this question:
Somehow this question has received six upvotes, despite that the problem is obvious to anyone with even the most basic understanding of electronics, and there is hardly a search that does not contain the words "how" and "led" on Google that does not yield the solution.
I couldn't find a similarly basic question on Stack Overflow, so I made one: error in python program. I don't have enough rep on SO to see the up/down vote split, but it got a net -3 votes and three votes to close as "too localied" in 15 minutes. The correct answer was upvoted, as were the correct comments, but the question was clearly not well received. In 15 hours, the question was closed.
The upvote mouseover says "This question shows research effort; it is useful and clear".
The downvote says "This question does not show any research effort; it is unclear or not useful".
The goal of Stack Exchange, I've thought, was not just to find questions, but good ones. I've read this several times, but see this blog post:
SO (and later, SE) would be a platform to encourage intelligent, invested answers deserving of links across the Internet and useful for generations to come.
Too local? Take it to Yelp. Too easy? Take it to Google. Too subjective? Take it to Quora. Too fun? Take it to Facebook.
It seems to me that this question was upvoted on solely on the basis of having a clear answer, but not being a good question.
I'd also point out that this question itself (meta-meta!) has received a downvote. Was it because "this question does not show any research effort; it is unclear or not useful?" Or, was it because someone just didn't like the implication of this question?