I head that 50 shades was about s&m and very poorly written. Id be more likely to read racing forms all day than pick it up. I hate rape and s&m, not sexy at all, and more than that I hate poorly written dreck.
50 Shades is the only time I have ever violated it.
As I said, I haven’t read it and I wouldn’t read it. When I write fiction, I write adults making conscious choices. And NO nastiness. By the way, reading Trek fiction, most of the “harder” fiction came out of UK.