If you're an experienced professional who just wants confirmation that you're on the right track with a particular new story then Scribophile ought to be a good place to trial stuff right? Wrong. Whilst there are genuine people there, and I did get a lot of very good feedback, there are a lot of trolls with no writing experience at all, who simply exist to make life hell for the rest of us. Additionally, there's hardly anything posted on there that isn't Fantasy of some kind. I had to leave for the sake of my sanity.