Play with Friends, or make new ones
Playing an MMO is all about playing with your friends, or making new ones. My MMO is now properly multiuser.
This opens up a world of new gameplay. You can do things together, you can help each other. You can simply hang out!
Maybe you want to form an association, such as a political party, or a sports team. Maybe you want to take over the criminal underground with a gang! The choices are endless, and the decision is yours.