A few months ago, I posted an answer on Quora that some might find controversial. For several months, they didn't have a problem with it.
Yesterday, though, they deleted my answer for "violating" one of their policies. (I suspect that someone "reported" my answer because they just didn't like it.) Anyway, I appealed, and won. Today, however, they collapsed the very same answer for violating their "Be Nice, Be Respectful" policy (which is ridiculous--my answer is polite and respectful). Anyway, I appealed, and asked them how my answer violates their policy. They totally rejected my appeal with no explanation (obviously because they know they don't have a leg to stand on). Again, I think someone is merely "reporting" my posts because they don't like my opinion--so much for freedom of ideas on Quora.
Also today, they collapsed another one of my answers, and this time there were absolutely no details about why. So, I appealed and asked for clarification of what rule my comment supposedly broke. Well, they simply rejected my appeal without any explanation again.
Anyway, I'm done with Quora. It appears that the deceptive, dictatorial moderators just do whatever they want--they don't follow any logical or published rules. Apparently their BNBR policy actually stands for: "Bully Now, Bully Rigorously." ;) In fact, one person on there hit the nail on the head with this comment:
"In the end, Quora moderation's purpose is to mainly prevent views they don't approve of from becoming visible on the site even when it answers the question fully within their ambiguous BN;BR policy so that they can create an echo chamber where everyone nods and agrees with each other while simultaneously claiming the site is open to all views and opinions (something that they are clearly not, as I and most others have noticed)."
I would recommend staying away from Quora. Or at the very least, don't try to post anything of substance there.