Having an opinion that is not the mainstream opinion does not make me a contrarian. For the past few years I would say that my opinions have been the same and have not changed to be the opposite of what is popular. I am not a clown or joker either. I do not make jokes on this website.
It depends on the reason why someone has the opinion. A contrarian takes an opinion because it is the opposite of the mainstream. It is describing the reasoning of taking an opinion and not about the opinion itself being contrary to the mainstream.