On June 2020 Wikipedia user RGloucester had recently removed mentions of Marxist scholar Trent Schroyer as being the origin of the term Cultural Marxism on his Wikipedia article.
This is censorship, and is likely being done to promote the regressive left's Cultural Marxism denialist conspiracy theory
Even when I went to school in 2000, professors warned me if I ever cited Wikipedia in an essay, I would be penalized.
Wikipedia is great as a citation source - just cite their sources instead. Do not cite Wikipedia - ever. Wikipedia has never claimed to, nor ever will, verify information given by the site internally, and thus, has never been a valid citation.