I've never quite understood the appeal of ren faires, mainly because I'm frugal and I always felt like there wasn't much to do except buy stuff. Reading your comment, I think there might be a key step or two that I overlooked.
Sometimes it's good to care. If someone is saying you're acts are immoral irresponsible or genuinely with your interests in mind you should listen and make a decision. If its someone saying you're being odd or being weird they're projecting their own self consciousness to stand out from the crowd.