Certainly in my experience and/or observations sites that have a few girls look very commercialised and are known as panty farms. The sites are usually full of ads and other crap too. This may appeal to some buyers I don’t know, I can only point out that the most successful sellers are single seller sites, just check last year’s and this year’s nomination pages.
Two such sites were exposed as fake this year so anybody wanting to try a similar venture would have a hard time appealing to anyone but the very naive buyer. No matter how genuine you are I’m afraid you will just look fake if you go down this route.
From talking to the buyers I have come in contact with one of the main reasons why a buyer would take the plunge and place an order is because the personality of the seller appeals to him. It isn’t just about sniffing some panties, it’s sniffing her panties. It’s very hard to get an idea of a girl’s personality if she has to share space with a number of other girls, so then the site becomes bland and clichéd.
Are you intending on selling on your own or do you have a couple of friends interested too?