The parties aren't about "sausage:taco" ratio. If you are looking to hookup or get invited to an orgy, then you'll be disappointed. We're not a swinger's organization nor a commercial venture. Everything is open to the public and you get out of it what you put into it. Participation is key.
It's about meeting other members of the community. Putting a face to the handles that you chat with. Real life verses Net life.
I've been to and helped out in many of our gatherings and met many of our informal group. Some have become friends and others are someone I wouldn't cross the street to pee on if they were on fire. Such is life.
If you choose to remain cloaked behind your computer screen, afraid to venture out, that's your business. But you are missing out on human interaction with people that share your interest.