YC doesn't dislike him. Even News.YC doesn't dislike him. Since there's no downvote link, all the article's (current) score of 13 means is that 13 News.YC users dislike him.
We currently get 4500-5000 uniques per day, so that's not a large proportion.
Re:Don't Waste Your Time With Guy Kawasaki
by carefreeliving on Saturday July 07, 2007 @10:09PM
(#33033)
Even the score is not necessarily reflective of the number of people that might dislike him.
It simply indicates the number of people that found the associated article interesting or valuable enough to give it an up vote.
I'd compare his books with Entrepreneur Magazine (does he write a column for them?). Practical, yet oversimplified, advice for the average joe.
We are the Wired and Business 2.0 crowd. I bet that 90% of Kawasaki readers have never even heard of del.icio.us, let alone YC.