How reliable is my source?

One of my sources for finding the definition of happiness is Wikipedia. This source is fairly reliable. Wikipedia has moderators which make sure that posts are accurate. The only problem might be that since anybody can post on Wikipedia, some inaccurate information might have sneaked through the moderators. A good thing about using Wikipedia is that there are many different views on the definition of happiness. This is because many people have posted their own views on the proper definition.