As a frequent editor of Wikipedia, I can attest that a lot of garbage gets posted there. I and other legitimate editors spend a lot of time "taking out the garbage". So whenever I consult Wikipedia, I check the current version against previous versions, to see if the current article is vandalized.

Articles I police are:
Order of St John
Knights Hospitaller
Russian Tradition of the Knights Hospitaller
Kilt
Knights Templar (too much fantasy gets inserted)
and various others.

Cheers, ColMac