I just politely and openly exited a large site. Reason was I politely and factually countered anti semitic posts, and my information was removed. There was nothing abusive in it. Mostly it was some information on Jewish history, Egyptian and Roman. Simply to show Israel existed historically as an Empire and how later history and geography was affected.
Maybe someone might agree but how come those large sites use "moderation" as a means to prevent others not sharing a majority view? This was very much a negative aspect of the old Soviet Union where you were considered a class enemy for endorsing capitalism, or free markets.
So, these days you find these social media forums where "disagreeing" demands censorship.
Looking at it now in Freudian terms:
Could anti semitism be a subconscious fear based around Christianity - a subconscious fear that if a religion isn't shared it casts doubt on its unassailable nature. Example: John Lennon blurted out once he considered the apostles were "thick" and all hell broke loose. Beatles records banned and threats made against Lennon. What caused the extreme reaction? Freud would suggest it was the suggested doubt or instinctive fear of an after life questioned? This may sound far fetched but you find the same thing with gay and lesbian sexuality. Those people who hate gay men almost always have latent, conflicting tendencies. Whereas sexually secure men accept a gay colleague at work and have no issue over it. In fact, the former scenario illustrates Bleuler's ambivalence, where a personality is divided into love and hate.
Lately there's been a big persecution of Jehovas Witnesses in Russia. Again, we see a different ideology that opposes another because a lot of people today demand we should think a certain way.
As Muhammad Ali once stated. He said as heavyweight champ he was going to think how he wanted to think, and not how others thought he should think. Besides that surely it's democracy (what's left of it).
As to other sites I am on, these have changed hugely. Given they are Russian I get the feeling people are afraid I might be a "foreign agent". Xenophobia is everwhere it seems.