Maybe its just me but I feel that dark humour shouldn't be promoted. With sarcasm often being used to make other person feel insulted, making fun of things or people which borderline on disrespect. Humour is supposed to be funny, and not just for us. There is no fun in it, if only we find it funny and other people find it insulting. That's just something close to bullying. Or maybe nowadays people have just lost sense of humour to come up with something without making it hurtful.