I suppose the plus with CM is that she is advertising her business at least. "This is what I can do for you", rather than just "this is what my body is like*
That is exactly it, as Pps have said her body and her clients bodies are her product.
I get the whole not getting selfies thing I don't either but it's just not for me. And yes people that don't like her Instagram could just unfollow her, the problem is they don't. They make absolutely vile comments about her size and shape how she's too masculine, to skinny, to curvy, will never have kids. It puzzles me why people follow people they just want to abuse. I had it this weekend with another celeb posting a picture of his wife, now his wife is very thin, naturally so, she's spoken openly about being bullied at school because of it. And people were commenting that she shouldn't look like that and following their comments with😱 (Horrified faces for those that can't see emojis) and when I said stop body shaming they came up with my opinion ain't it, and called me a keyboard warrior. I think it's absolutely wrong to comment on other peoples weight shape and size. Even if you think ohh you look thin is a compliment it might not be too the person your saying it too. Even more from behind a phone or keyboard.
For example a friend of mine was very ill for three months her doctor refused to diagnose crones, so three months of literally not being able to keep anything down she lost three stone, we met up with another friend who unwittingly went ohh have you lost weight thinking it was a good thing to notice to which my friend had to go yes, but I've been ill and I'd rather not talk about it!
I know this is slightly different to CM but people thing they have a right to judge!