If teachers complain about Wikipedia being unreliable, I just tell them that if it's cited by an outside source then it's trustworthy, thus it's bullshit to be calling Wikipedia unreliable simply because it can be edited by anyone.
Why the fuck do people not know how to use citations.
Also, it's blocked at my school because articles like 'vagina' and 'penis' have- would you ever guess- pictures relevant to the articles. I am not fucking joking.