Yeah, that is a phenomenon. I have said things that were stupid and insensitive (yeah, I know who'da thunk it?), but when I have it was verbally and the only person who could hear was usually Mrs. Tidewater. She'll give me that look and say, "that was insensitive and stupid."Absolutely. Of course, I think she only had about 170 followers, so she probably expected those people who were following her knew her and would see the (poor) joke in context.
But the response from the masses is what fascinates me - she lost everything she had worked for because she said something some folks were offended by. I'm no psychologist, the 'group shaming' mentality seems to point to some serious issues in the people who cannot wait to see something bad happen to someone else, because they think that person 'deserves' it.
Nowadays, someone can make a stupid/insensitive comment and a million people can see it.
I see this woman's comments as a maladroit attempt at humor (unless she really believes that white people can't get AIDS, which I honestly doubt).
Maybe the public shaming gives people a chance to avoid having people notice their failings ("Don't look at me; look at her!") and probably helps them feel better about themselves ("I am a good because I have publicly condemned this nitwit.") It sounds very "high school" to me.