I can get that there are occasional girls (and probably guys) that throw on some glasses and take a stupid pic for their facebook posing like they are geeks or something cheesy like that. Other than being mildly annoyed at a poser and happy they didn't make the duckface, I don't care much more about that issue.
Now, believing that a woman (or dude) pays to get into a con, buys stuff and spends time to make a costume, and has no love for the medium in some way shape or form is another matter. So maybe a fan is into movies, shows, books and various other geekery more than comics but still dresses up as a comic character, who cares. (other than punchy's cosplay hatred that is) And even if there is someone like that showing up there, how many of these damn 'posers' are there really? like one out of a thousand? Move the fuck on with your life and find a better cause.
Now if you are confusing booth babes with geeks, then just kill yourself. Those people are doing a job. Do you think the wedding photographer you hire would be coming to your wedding if you didn't hire them too? Are they 'poser' wedding guests.
Personally, I've never met someone cosplaying that didn't like something geeky, even if you don't count cosplaying itself as geeky. I mean, who the fuck are these guys thinking they get to judge who is fit to be a fan, fuck off.