My opinion is that this applies to all "sex offenders" as I read this, as opposed to simply specific ones, and "sex offender" can mean a lot of things. What's more with games requiring online connectivity, and everything going increasingly multi-player, this is basically banning anyone who is a sex offender from gaming... and that's pushing it.
Yes, we should be keeping known pedophilles out of games like Disney's "Pirates Of the Carribean" or that "Hello Kitty Online" game, but some guy who did a year in jail after an ambigious date rape conviction (like how people can be convicted of say getting their date drunk and taking advantage of them in some places), public masterbation, or some other thing that is could be considered bad but not "OMG" bad, probably shouldn't be facing this.
Once someone has done their time, that should be it, and I have an issue with discriminating against former convicts based on their records, and feel that this has always been one of the big issues with keeping those kinds of records and making them availible... on a lot of subjects, not just sex offense.
That said, I believe that for many crimes the penelties should be higher. The problem is when a convicted pedophille is simply put into jail and released, without more strict penelties like legally mandated chemical castration. Really we cause a lot of these problems by giving people slaps on the wrist, and running the prisons on a sort of revolving door system. The way we currently interpet "protection against cruel and unusual punishment" which is far differant than the original intent, means that people who committ crimes are more afraid of the other inmates than the prisons and sentences themselves.
Of course at the same time, I think people misunderstand how pedophilles work, they can spend a long time grooming their victims. Generally speaking pedos do not just login to a game, chat mode, or other location and immediatly try and convince victims to go places with them. They can spend weeks, months, or sometimes even years planning thesee things. It's not an accident that a lot of missing persons are never found.
See, the pedo or general sex offender people are afraid of is the one who is going to say talk to some kid for a period of time, earn their confidence, perhaps by allying (covertly) against the parents (all kinds have problems with their parents) and then eventually working things to try ans get the kid to come meet them after a fight. Your teenage or tween runaway going about it with a plan to go meet their friend or whatever and hide out there. Done correctly an abductor might just work by sending a kid a plane (or bus) ticket, and a few bucks, and then picking them up at the desination... with the victim never being seen again (since if done right the abductor might not even live in the area the pick up is made in).
Basically it's not the initially creepy guy people are worried about, and most serious sex offenders, especially repete offenders, tend to be pretty charismatic in their own way, especially those who actually stalk prey as opposed to performing sudden street rapes or whatever (that isn't usually the concern when it comes to electronic devices). That dude in your teenage daughter's guild that she hangs out with might be the sex offender.
In short, I understand the reasons, and they are better than most people who agree with me in not liking what's being done here give them credit for. I just think that there are better ways of handling the situation, this kind of policing is wrong, rather I think we need more strict penelties, and to give the goverment the abillity to castrate sex offenders without needing any permission other than a conviction.