Wikipedia requires peer review to be taken seriously as a site to begin research and gain knowledge. Without a peer review process the website becomes unreliable and untrustworthy. Peer review ensures that the most up to date and accurate information is presented to the people who are searching for information
Wikipedia having peer-review shows the people who get their answer from Wikipedia that others use their website. Also another thing that peer review shows people is if the response to the question is accurate or not and what the best response to the question is. I also feel that Wikipedia shows people what their answer should look like when they are answering a question.