We all know DF is a quick way to gather random people together easy access to content the down side to this is mention by OP those random people telling each other people how they should or shouldn't play, neither side is wrong just not different playing types. My suggestion is more people need to use PF more often and use DF as last option, but also to look for like minded people to go do content with each other some people do already I believe, but most I've seen on my PF listing is all end game rarely regular dungeon request.