It is dismissive. It's also judgemental and harsh. However, IMHO it's an appropriate response for the subject and the context. With the advent of the internet s

It is dismissive. It's also judgemental and harsh. However, IMHO it's an appropriate response for the subject and the context. With the advent of the internet so many people with fringe ideas can get together into an echo chamber rather than dealing with the ideas and derision of the sane people around them.