"Parents can't trust a rating system that doesn't even disclose how they come to a particular rating," Yee said in a press release, which is actually a fairly apt statement. Unfortunately, he follows this reasonable statement up with a personal attack against both Rockstar and the ESRB by hinting at the involvement of money hats.
We find ourselves in the uncomfortable position of agreeing with a known anti-ESRB, anti-game politician, even if we don't agree with his reasoning. We don't suspect payoffs or anything, but more information is always better. The more open the organization is about how they make their decisions, the more equipped parents are to make theirs. If they bother to read the things.
[Update: fixed the erroneous information about rating details; thanks, TravestyOJ, for catching me]