Well, it's funny, because IRL I know only three guys who play Skyrim, and dozens of guys that don't. Does it mean men don't play video games? Most of male gamers I know play only Fifa or CoD. The only person I've ever met who played HoMM was a girl. Nobody played Civilization, but I'm not going to draw a conclusion that I'm the only person on the planet who has a collection of strategy games on her shelf. I actually do believe internet sources - the truth is, 99% of women in the net are in fact women, and they do play games. It's obvious that we're not a majority here, but it doesn't mean we're all just pretending to be playing.
As for your experiences, did you ask every single woman you've met if she's a gamer? Did you talk to all of them about games? I can say for myself that I don't wear a T-shirt with "female gamer" printed on it and most of people I meet have no idea I play games. Why would they?
Surprisingly, I do ask some of them whether they play games or because I actually want to share my hobby with them. But most of them are not interested in games at all. I even showed Planescape: Torment to 2 girls in particular, but they looked at it like as if they don't know what to do with it.
One I played Diablo 1 with on the 56k modem. The other 2 are WoW gamers.
And there is no need to ask every single female point blank in order to get a more complete statistic. If there were more female gamers, life experiences would sooner or later reveal them. Like if we attend a group session such as group dinner, church service, and the guys start talking about WoW, a few girls would join in and say that they too play WoW, etc. Again, just 1 girl from church I know that plays WoW. If there were that many female gamers, surely I can talk to 10+ girls that play WoW there. But only 1.
Or when I queued up for the midnight release of Burning Crusades at Melbourne Central in Melbourne, Australia. There were barely any females there, and most of them seemed to be girlfriends of guys that they play with. If there were more female WoW gamers, there would be more of them on the midnight release. Sure then you will say most of them probably ordered online or something. Really? Why? You're not afraid to attend Blizzcon, but you're afraid that nerdy guys may try to hit on you on a midnight release? Maybe you say they are afraid of going out after hours. Well, they certainly are brave enough to go to nightclubs where the guys there are even creepier and will try to grab your @$$.
Once again I believe there are girl gamers. I just don't think it is as many as people try to claim.