I don't know about being *proud* of your dislikes; I think that could potentially lead to bashing the things that other people like to the point where they can't admit what they like (which leads to guilty pleasures). Equally, if you don't like something, you don't like it- you don't have to justify to *anybody* why you don't like it. Basically you shouldn't be ashamed of your own opinion and people shouldn't berate you for having one.