I'm pretty YIMBY, but I don't really have an issue with popularly mandated style guides for development. As long as they are A) set in advance, not in response to individual development plans and B) aren't deliberately prohibitive of varying types of development. If an area wants to, say, mandate that all buildings are Art Deco, that'd be pretty cool to live in and visit. An area that wants to ban anything but single family homes should go rot.