I'd be interested what the results of a Bartle Test poll would be on HN. I'm an ESKA, which has always left me in that odd group of players who has never been satisfied by the core mechanics any MMOG. Most MMOGs cater to As, with a bit of S and K. The Es seem to be mostly ignored, perhaps because they'll never be satisfied by your standard World of Warcraft-copycat grindfest.
Nothing beats the exploration and interaction value of an expansive world (say, something like Exalted), a custom story written for your character, and a group of people who come to spend time doing nothing but exploring and interacting with and generating it. Anything driven by bits is a shabby and distant second best.
Though if you must, something like Nethack can keep your E side happy for a while.