It's really tiring to hear the "solo player" ask for more MMO content geared towards them, as if anything at all should be catered towards the solo player; as if the player who only likes to solo has any right to demand anything in a game specifically tailored to be a massive multiplayer online experience.
Every aspect of an MMO should encourage meaningful player interaction. Every. Aspect. That's what (should) define a (good) MMO. That's why we call these games MMOGs, and not "multiplayer-supported single player games."
Get over yourself. Not everyone wants to group with you.