Don't give her the effort of replying to her ignorant posts. You can find these types of people on almost any forum, they all like to get in arguments over the internet and tear people up just because they can't relate. Nothing wrong with humor, and theres plenty of humor here, but just because everyone here doesn't find your rude comments funny doesn't mean people here don't have a sense of humor.
Back to the thread, it would be interesting to know where their dark sound comes from as far as their past goes, but also it's cool not really knowing and having it kept a mystery. Hell maybe they are just good at writing dark music without much depressing influence, we may never know heh.