Not sure how you solicited for this party since you don't seem to know the people potentially attending. I've never done that and I'm not sure how you would even sort for flakes, let alone compatible personalities. I (we) would personally be hesitant to attend a party where we didn't generally know the people who were attending and who specifically was coming that night. Having some new unknown attendees (potentially interesting/fun/hot) could be an added attraction, but we probably wouldn't commit the time if we didn't know there would be some people there we would enjoy hanging out and playing with. Otherwise we would rather go to the club, which I gather is not an option in your area.
An exception would be parties set up by organized groups, of which there are two in our area. One screens participants and requires pictures, the other does not. Predictably the former has better eye candy at their parties. We generally don't go to either group's parties unless friends are attending as well.

