This is known in wiki community, but let us re-empahasize. Because this is an open community, personal responsibility is of utmost importance. Please cite all your work. When reviewing articles, if you make a statement, tell us why, so others can understand your logic.
For example, you review an article, and think that there were biases - state what they are. Don't just say "this was a crappy work." It is important to remember, every work will have inherent biases (and limitations). Any good investigator tries to keep the biases to the minimum, we must all acknowledge the difficulties in research.
If you find something is in error, please correct it or start a discussion on the topic (see the tab at the top of the page).