So I think it's time we tried to 'nip this problem in this bud' before it gets out of hand. Automatic dungeon finders are terrible systems. And yet it's something Yoshi mentioned he might implement sometime in the future. And you know Yoshi, when he gets a bad idea in his head, he usually just goes and implements it without warning anyone (e.g., mob size increase, autoattack, removal of mob behaviour, aggro icon, etc.).
So let's make sure he knows it's a bad idea this time before it's too late.
An automatic dungeon finder is at odds with the philosophy of a massively multiplayer game. It makes it so that all players essentially end up doing is queueing in town for a dungeon. It turns the whole gameworld into an entrance lobby for the real content (dungeons/raids), and we shouldn't allow that.
Plus I'm not really a fan of being teleported between content that has nothing really to do with eachother.
I'm sure there are people in Rift and WoW who don't even know where the dungeons are because they never had to explore or run there, they just got automatically teleported into it through the dungeon-finder mechanic.
And it's especially crap when it's a cross-server mechanic, allowing you to interact with people you will never see again. You can just imagine the type of etiquette involved between people who have no reputation at stake.