Now I need to go see if it's the same writer who I just blocked. This rude guy (assuming it was a guy) said several times to me that I am writing about a "tired" subject and that everyone is writing about addiction. I brushed that one off but blocked him when he told me I was whining and that I just needed to suck it up.

Sorry this happened to you. I seriously think people like this are just projecting all of their hurt and insecurities onto others.