text: The second reason is so that you don't get only one opinion. If you were to get an opinion for only one person than you have no way of knowing whether that opinion was biased or not. For me I think the more opinions that you get the easier it is to sort out the biases. Also the more opinions that you get the more you can see who liked what. say you were going to an amusement park and you wanted to see what rides that were fun to ride on, so you asked all of your friends what rides were fun to do. You would not of been able to do that if you had gotten just one opinion.