I have noticed the recent trend in standing outside dungeons and spamming lfg*insert dgn*. I personally find this current setup slightly infuriating, and mostly because the amount of people actually looking for the dungeons in general is almost nonexistent on some days, and I fell in love with some of the people on my server so i would hate to leave.
I personally think that enabling players to cross server party for dungeons would be a simple solution. My suggestion for how to easily enable cross server parties to be formed is essentially a chat menu with a few features.
1) The chat window is around the size of your standard IM program messenger ect
2) The icon to open this chat is in the upper left hand corner
3) A chat for each dungeon
4) A sub chat for people searching for explorer mode or story mode runs
5) The chat rooms span all maps
5A) EX. A person grinding in dredgehaunt cliffs can find a party for CM/TA story mode