One idea that i would not mind (i would mind a RDF) is a tool where you simply can sign up for different dungeons. so people can see it, they would stll have to manually invite you, and you would have to travel to the dungeon or get summed like it is now.
Just simply a tool where you can sign up and see what other players are looking to do a certain dungeon and what role they do have
the only thing it would change is that it would give you a way to find people for a dungeon besides global chat
well one reason would be. with the RFD workign the world WILL be much more dead and empty. people will spend much more time just hanging out in major cities and popping into dungeons. it will depoloate the world so to say.
Another thing is that people don't even have to write a single word to other players to run a dungeon. And if someone find it hard to interact with other players to form a group, then they should reconsider their choise to play a MMORPG