Kill Ten Rats says that in his MMO, using phrases like "u r" (as in "you are"-- yeah, I don't do it either) should flag you for PvP, as should writing "lol" ten times, or using the word "ghey".
I'd have to say that I agree, but what if you could design your own MMO, tailored especially to your own tastes?
In my MMO, ganking someone below your level would give them a 10 minute buff that would make them stronger than you for 10 minutes or until they killed you, whichever came first.
In my MMO, NPCs would be extremely excited and generous even after seeing you complete the simplest of quests. "Wow, you killed all those rats in my basement? Here, have this Holy Avenger Sword!"
In my MMO, anyone who needed a group could get one without waiting, and all group members would instantly appear wherever they needed to be once the group was formed.
These are all pretty nice, but what can I say-- I'm a nice guy. Your wishes might be a little... harsher. If you had a designer at your beck and call to create the MMO of your own personal dreams, what would be "in my MMO"?