You have zero (0) idea what you’re talking about. Why do you talk. Like this? An MMO is a game for everyone, not just socialites. Nowhere in the definition does it say ‘socializing.’ For your reference, Massively Multiplayer Online Role-playing game. Instead of giving crappy advice to anti-social people that they won’t follow, maybe think beyond a selfish surface level view.
Accomadating people that are shy or anti-social doesn’t impact you at all. You’re still welcome to: “Get out of your shell. Talk to people. Say you’re looking for a group. Start a group. Join a guild. Ask the guild.”