Yahoo Answers has been ranking well in the search results for a while now. So the concept of using this network as a platform to try to help your traffic, is nothing new (although the title implies that).
But let's step back and look at this thread.
(1) Hey, it looks like Yahoo Answers ranks well, said one member. (2) "Interesting. Do people still use Yahoo Answers to drive traffic to their relevant website(s)?" Said another member. (3) "So go in and start answering some Yahoo Questions. you wouldnt believe the traffic i get with it!" said another member.
You see how it begins or ends for that matter. The spam controls at Yahoo Answers are nice, so let's see how bad it gets at Yahoo Answers in terms of spam.
Forum discussion at DigitalPoint Forums.