Because I'm a nice guy with a good education. Why can't you just accept that not everyone has to have the same taste in music as you? It happens that I do believe that there is such a thing as objective quality in music, even though nobody can define it or come up with an objective procedure to test for it (the same is true of truth, but few people doubt that it nonetheless exists). But I usually can tell the difference between music that I don't enjoy because it's bad and music that I don't enjoy because I don't understand it. The fact that you repeatedly describe darkpsy as "random noise" when it doesn't sound random to the people who like it suggests that you don't understand it, just as surely as somebody who thinks that the Fibonacci sequence is random doesn't understand it.
edit: OK, admittedly the "nice guy" part is debatable.