One of the real problems in regulating video games is that people can't get over the idea that video games are for children. As a result, I think adults sometimes ignore the ratings in a way they wouldn't if buying a DVD; they figure that M must mean the game is appropriate for mature preteens or something.
It probably doesn't help that the rating scale is unfamiliar to non-gamers. Plus people aren't sure yet what to do about the effect of participation on the OK-ness of different sorts of material. Plus our culture's strange value set around the relative acceptability of sex, violence, and gore. I have to admit I'm sort of shocked that Diablo II is rated M. The ESRB isn't exactly keeping their powder dry there.
It probably doesn't help that the rating scale is unfamiliar to non-gamers. Plus people aren't sure yet what to do about the effect of participation on the OK-ness of different sorts of material. Plus our culture's strange value set around the relative acceptability of sex, violence, and gore. I have to admit I'm sort of shocked that Diablo II is rated M. The ESRB isn't exactly keeping their powder dry there.