Credibility of Wikipedia

After reading three blogs regarding the credibility of Wikipedia, I've formulated an opinion - I do think Wikipedia is a credible source. Credibility is the result of various opinions being confirmed by a majority. So, if Jimmy posts on Wikipedia that Dr. Vrooman was born in Dallas, where in fact he was born in Los Angeles, sources can flag this fallacy and disapprove it. This is the beauty of Wikipedia - the majority determines credibility. Herein lies the problem, not everyone can discern this difference between "Truth" and credibility. Truth is essentially you absorbing an opinion and pruning that opinion to a personal belief, whereas credibility determined by a majority. In this case, the numbers win - the more people that confirm an opinion the more credible it is. Therefore, Wikipedia should be deemed a credible source.