Welcome to the forums.
Yeah, MMORPGs seem to be either hack-n-slash fests, or variants of checkpoint questing. (i.e. get quest from A, go to point B, perform task C, return to A for reward.)
If someone can really get the RP in there actually working, it'd be great, but a fantasy/superhero/sci fi setting and a character sheet doesn't make something roleplaying, I'm sure all of us have done RPG as a thin thread of plot connecting combats at one time or another.
At best, the MMORPGs recall RP of my early youth, and certainly dungeon crawling with a computer handling the mechanics is fun, but it's not really roleplay. . .
Then again, "massive". . . .anyone here really think they could do an open call for a roleplaying game and expect all the people who show up to actually want or be interested in roleplaying, or will you have a mixed bag of psychos, combat monsters, cardboard cameos and some roleplayers. . . .I dunno if an "open field" and "massive" environment will ever really produce roleplay. All of the best gaming groups for actual roleplay I've been in have been selective about letting people join.
If someone ever can, it'll be amazing, RPG without dealing at all with the mechanics would be sweet, but it seems like a pipe dream. . . You'd seem to either need AI, or GMs in the background playing the NPCs, and some sort of mechanic to rienforce staying in character.
Then again, "Roleplay points" would almost seem to be self defeating. (A mechanic for roleplay?)