Question: reasons why wikipedia is not a good source

title: Wikipedia:Wikipedia is not a reliable source
text: Wikipedia is not a reliable source . Wikipedia can be edited by anyone at any time . This means that any information it contains at any particular time could be vandalism . Biographies of living persons are especially vulnerable to this issue . Some edits on Wikipedia that are in error are sometimes fixed , however because Wikipedia can not monitor contributions made by millions of users , there are many errors that remain unnoticed for days , weeks , months , and even years . Therefore , Wikipedia should not be considered a source for ' fact - checking ' . 

Answer: answer: Wikipedia can be edited by anyone at any time and, therefore, it should not be considered a source for ' fact - checking ' .
answer: Wikipedia is not a reliable source because it can be edited by anyone at any time, which means that any information it contains at any particular time could be vandalism. Some edits on Wikipedia that are in error are sometimes fixed , however many errors remain unnoticed for days , weeks , months , and even years .