Dude, this music is so BORING.

I conclude now I have no inner resources, for I am heavy bored with statements like Anna's.

There are things going on and changing in rap songs, Anna, just not the things you're looking for.

Anna's friends obviously heavily into the Strokes.

Boring = I do not find this music stimulating to listen to.

...with all subjectivity drives at warp speed.

As my mother always told me when I'd complain about being bored: "Dear, your aren't bored, you just aren't creative enough to think of something you'd like to do."

Heh, my mum used to say "Well, you can tidy your room/help me clean the house/do the dishes then".
Guess it taught me not to complain about being bored. I try not to get bored because of that and to be patient with things, which is definitely reflected in music. But you could attribute boredom with any genre:

Chart Pop: Because it's so manufactured and bland
Drum'n'Bass: Because it's repetitive and unrelenting
Hip-Hop: Because there are so few changes and the beat stays the same.
Prog/post rock: Cos it's slow and contains long repeating passages
Metal: Because it's just dirging and doesn't have any female backing singers

see what I mean? That's kind of obvious. But what is boring to one person is really interesting to another.

Hell, my friends (being as they are the same age as me, 13-14) are all into hip-hop!! Anyway rap DOES suck, prog DOES rule, and I quite like the Strokes.