DK if this applies to you, but you might consider whether the info you've posted here or elsewhere indicates that you're really not that into Boalt. I don't work at Boalt, but I'm at a tier 1 school. We've rejected numerically qualified people after they, say, send an email inquiry including a signature line link to their webpage where they've indicated that we're behind a bunch of other schools on their preference list. This is not info you'd want in your file, but you just added it! Any adprof worth his/her salt checks this site and others to monitor the word on the street. Sometimes it is painfully obvious who a poster is, and we'd be stupid not to take comments (and your apparent lack of judgment) into consideration when we weigh your file against another with similar numbers, etc.
Understand that a good part of an admissions decision is in the hands of the fates. The mood of the file reader, your timing in the ad cycle, whether someone just like you was admitted last year and is a superstar or a big hassle, that sort of thing. That said, if your PS is about what you've done, that may be the problem. To be most effective, a PS ought to reveal things that aren't capable of being listed on your resume.