Consider the scoring strategy Yahoo! Answers uses to award points to its members. New users start with 100 points, the ability to ask up to five questions a day, answer up to 20 questions a day, and comment on 10 answers a day. But if users want the ability to rate other answers with a “thumbs up” or “thumbs down,” they have to earn another 150 points first. To earn those points, they could simply log in once a day for 150 days. If they choose to answer questions, however, they can earn 2 points per question, which would speed up the process. The quickest way to earn a lot of points is to provide the Best Answer for the question. When an Asker selects a Best Answer, the participant who wrote it gets 10 points, and additional points for each “thumbs up” rating from other users.