This is Peter Hartlaub. He is the San Francisco Chronicle's pop-culture critic and "helps cover movies, television and the media," according to his bio. In addition to his newspaper duties, Hartlaub blogs for the paper's "Culture Blog." One of his latest posts is an astonishingly ugly, ad hominem attack on Ann Coulter--emblematic of the unhinged, intolerant Left. And it's posted on a "culture" blog.
The jerk compares Coulter to a horse at a children's zoo. He mocks her weight and her face by linking to sophomoric left-wing bloggers deriding her looks--including this, this, and this. He posts photos he took of the horse alongside photos of Coulter, then sits back and waits for Chronicle blog commenters to pile on.