Flaf and Valet are right, the people who ask those questions know the people who answer as friends and have no qualms about selecting their answer than contains a single link over one that has taken 30 minutes to write out. Star also has a point about downvotes too, I've definitely received silly downvotes before (come on, three almost exactly the same answers and only mine gets a downvote is stupid) and I've seen it happen to others too.
It just seems to look like a bunch of people asking questions they know the answer to just so their friends can vote them and they can vote on and select their answers, while at the same time down vote people randomly.
It just annoys me to see people obsessing over points. Yea, it's happening for as long as I can remember, but ridiculous situations like this are, well... ridiculous.