She led a campaign to completely ban "mature" video games, despite the success of the voluntary rating system. She has had a few other gaffs as secretary of state.
I'm not exactly that keen on Clinton as the candidate in 2016, but I don't think this charge is as strong as gamers always make it out to be.
This is the bill in question. It didn't ban mature games. It instead added a penalty to those found selling Mature or AO ESRB rated games to those underage, alongside measures to include review of ESRB ratings, both as a general independent annual review and in specific cases where they were misleading (it was inspired the Hot Coffee nonsense).
It's worth noting that since then
the Supreme Court has extended first amendment protection to video games, making such measures no more legal than trying to add regulations to the MPAA. So it was an unconstitutional level of restriction, although arguably not an unreasonable one.
But in any case, it was not a flat ban on Mature games.
My issue with Clinton is that she is, holding video games aside, not especially liberal while being painted as an Arch Liberal by the right. Obama, who I have always seen as rather moderate, is easily to her left on the issues. Her healthcare plan in particular was closer to the compromise position Obama ended up in than Obama's own more leftish proposal.
I don't doubt that moderate liberalism works well in the USA. But she is always going to be painted as a raging communist feminazi with a confirmed murder count by the right wingers. If we have a candidate who is going to get tagged with that kind of crap, could they at least have deserved some of the charges of leftist?
On the other hand, good on gay rights. Most of the longer term supporters of hers I knew back in '08 were from that movement.
I'm hoping someone else comes forwards, but waiting till 2014 for them to show up again isn't very attractive and I haven't seen any particularly obvious new players in this convention cycle.