Wikipedia - Can they keep out the Bad?

How do Wikipedia’s processes for creating and modifying articles ever lead to high-quality results? In other words, since anyone can easily edit Wikipedia, how is it that good (and usually accurate) content emerges?

                Had Wikipedia kept its business model from Nupedia the site would not be as prominent and as expansive as it is today.  I say this because people love to post videos, articles, and reviews regarding their knowledge and interests.  One reason may be for bragging rights and the other because I believe people genuinely care to share their knowledge with others.   If Yelp, YouTube, and Wikipedia are not enough examples for you to believe me then remember that we also have sites like Google Maps where users can make reviews and many different blogging sites where users can generate and post their own information. 

                With any user generated information site there will of course be information and content that is added that is either below average, completely wrong, inappropriate, or offensive.  Wikipedia in fact has seen and had to deal with examples of each, but the fact that most people take pride in their research, knowledge, and writing will keep most of the generated information accurate.  The majority of people who take the time to share their information through Wikipedia probably have a passion for the information they are sharing and do not want to jeopardize their reputation or the experience of other users.    This Wikipedian system where users can edit articles allows for articles to become accurate overtime.  Wikipedians usually feel strongly enough about a topic to make changes to an article that is inaccurate or inappropriate if a bad apple justso happened to share misguided information.  Wikipedia’s system of editors, administrators, and bureaucrats acts almost like a checks and balance system which can ensure the stabilization and accuracy of articles.  Although this process of adding, deleting, and editing user generated information may be a slow process, I think overtime the accuracy of articles will prevail.