This isn't a console game where you are playing by yourself and what you are do has no bearing on anyone else. Wasting people's time playing poorly because it's fun for you isn't cool. I am not sure the extent of what you are or aren't doing, so this may or may not apply to you. The jobs are generally set up with a set rotation or right way to do the most damage. Not understanding it, or learning it, or trying and messing up is totally cool. Not doing it on purpose is like tossing your middle finger up to your teammates.