I think it is annoying to hate things only because it is popular. Do people look stupid doing the Harlem Shake? Of course they do, but it is fun to do it with your friends. A lot of people watch the Walking Dead and Breaking Bad, but should somebody dislike these shows because they are popular shows? No.
They think they are better than everyone because they are so unique, but really hipsters themselves are becoming a popular fad, and now it makes no sense to be a tool.