As some have said, it's partly a marketing ploy, but also a way of covering themselves from accusations of emotionally harmful messages.
There's a very strong trend whereby we are creeping into a climate of censorship, threatening the right we should have to freedom of speech, for which we have been known for quite some time.
I'm not supporting abuse, libel or slander, but I do most strongly and ardently[support our right to speak plainly and honestly,
Social media frightens me, with its ability to sweep along thousands of users into some kind of mass trolling, when often somebody's words or actions have been misinterpreted or misunderstood. I wish I could remember where I read very recently a statement by someone that many of these people don't have the mental acuity to discriminate between fallacy and honesty.
And if you've bothered to read this far, please consider refusing to buy books published by Penguin and Puffin.
I'm referring to their crass and very unintelligent decision to edit some of Roald Dahl's books , with the help of a 'sensitivity' consultant because of readers who may find him "offensive when it comes to race, gender, weight, and mental health."