your sister or daughter or best friend may well see it as an opportunity to pick up some cash for standin' around makin' small talk
Actually, if I read the initial poster's thoughts correctly, these people are volunteering and therefore not going to be paid a dime. They are volunteering because they are hardcore supporters of the 2A and CCW as a whole. By asking for females I don't think he was shutting the door to men all together either.
Part of marketing is selling a product as hip and trendy. For that reason alone I imagine he wants young ladies there but probably young men too. By having a number of youth present, along with a good mixing of seasoned vets, you paint a strong image about CCW and the 2A.
In times that I have volunteered in the past, or gone about recruiting people for a college cause that I participated in we would undoubtedly bring about a couple of the female members of the group, along with the many more men that were interested in helping anyway. They didn't come along to be shown off for the young men around campus that may have been interested. They came around because they wanted to be part of something fun and something that they are helping make a difference at.
For some reason republican, pro-gun, or conservative activist causes have more male members than female's anyway. I don't think the women are going to be flaunted as sex or T&A. I think the original poster's intent is to have a bunch of young folks to offset the older crowd. I'm sure everyone will be dressed in comfortable clothing that does nothing to flaunt sexuality.
As someone pointed out, the owner of this forum, Oleg Volk, uses almost exclusively female models for his posters. If my memory serves me correctly, there is also a pro-2A activist group out there called "The Second Amendment Sisters" which, by the sounds of it, is exclusive to females. I'm sure some of them bring their teenage sons or young male friends to events when they table so as to help increase traffic.
He probably came to THR asking for volunteers first because he knew that if someone is on THR, they are more likely to be enthusiastic about the 2A and CCW in general. While i'm not a female, as a 20 something young man i'd volunteer to help you out in a heartbeat if not for the 2000 mile drive I would incurr.
Good luck Wisconsin! You guys have got a hard fight on your hands. Gest wishes.