I have posted on Quora and found that it is controlled by special interest groups. For instance, Democrats gain control to crowd out Republicans. How is it done? They SIG uses 100 accounts to REPORT FOR VIOLATIONS any content they want removed. And the stupid bots and mods comply. For instance, I posted some verifiable facts about Jehovah's Witnesses, and that group has a special office that REPORTS with over 50 accounts. They are successful in getting undesirable facts about them removed so that they can continue their door to door propaganda campaign.