It's pretty hard for any site these days (especially the big ones) to stop fake profiles and scammers from signing up, but I think I get what you're after.
There are a lot of adult dating sites that don't have a lot of users, or use sneaky marketing tactics like the bait and switch you're referring to.
A friend of mine told me he uses one adult dating site only! He says it's so easy to meet sexy girls from around the area. When you sign up and use Adult your information will always be safe.
Actually, it is much easier to find casual encounters and meet fuck buddies on adult sites than to look for casual sex offline.
Adult dating environment unites people with the same interest, they gather adults seeking for the same (local sex with fuck buddies, casual sex, sex online, free phone sex and casual encounters with horny women, swinglifestyle) in one place.
Are you looking for an adult dating site that caters to adult encounters or casual sex, that isn't full of scammers or fake profiles?
If that's the case, I'll admit it's pretty hard to find.