TL;DR – NPR profiled the rap group Odd Future. They are “prolific” in their use of words that make people uneasy. A flame war erupts in the comments where someone asks why what Odd Future is rapping about is considered artistic. A very heady discussion follows:

Post Odd Future Lyircs and Judge their artistic merit? Sure. Let me begin. Some of these are with help from rap genius. Lets go.
First Line of “Yonkers” by Tyler the Creator
“I’m a F–king walking paradox, No i’m not”
Here Tyler is playing with the idea of a paradox. Pretty easy to recognize.
“Bedrock harder than a motherf–kin flinstone”
This is simple yet great wordplay, an artistic technique. He plays with the word bedrock from the popular cartoon and you have to think of making a bed rock, possibly talking about sex.
“I’m clockin’ three past six and goin’ postal
This the revenge of the d–ks, that’s nine c–ks that c–k nines”
These are great lines. In the first two lines, Tyler uses the number multiple times. “three past six”… 3 + 6 = 9, talking about a 9 millimeter gun. When he says he’s “goin postal” he is saying that he is about to start shooting randomly. Now, the next line, is great because he plays with the words “c–ks” and “nines”. A “Nine” is a slang term for a 9 millimeter gun. “C–ks” in this line is used as the insult, the reference from “revenge of the d—ks”, and the act of pulling the lock from the gun to shoot. Basically these two lines display wordplay.