If you didn’t know much about Keith Haring other than what you read in the recent piece in the New Yorker (which I criticized, here), you might a poor impression of this great artist.
Fortunately more prominent writers than myself have written good things on Haring and the biography in the New York Times and The Guardian. I think they provide the right context for the artist and his times too. Plus they hold him in high esteem. Highly recommend you check them out if you were a fan of the painter or want to know him better.