This model has the right idea. When you consider how much time can be wasted on dating, it makes sense to have certain standards a potential partner has to meet before you even consider talking to them. There's no reason you shouldn't screen potential partners based on things you already know you need (or can't stand) when it comes to a relationship. Most people have a pretty reasonable set of standards when it comes to dating someone else, but things can occasionally get a bit out of hand. You can certainly refuse to date anyone who isn't a six foot tall model with an IQ that makes Einstein look like an idiot, but you're probably not going to have much success in the dating game.