ok this is why a AFK kick is not the best answer.. IF a realm/server holds 5000 people playing at one time.. But you have 15,000 people trying to get on you have 10,000 more people then what the server/world cans support. So now you have 10,000 people who cant get in and trying to log in all the tiem wich puts stress on the servers.. IF on the server 3,000 are afk and they get kicked .. you still have 7,000 people who are still trying to get in.. So we will still have full servers and the same problems we are having.. Yes some more people will get to play but it wont fix the problem anywere as well as people think it will. So By increase the servers ability to host more people then more people then get in.. then there would be less need for people to afk everyday. As I stated before world of warcraft has some realms/servers set up to host up to 20k people...
But by also increasing the servers cap on a server instead of just adding a bunch of extra server/realms, it will help game play better by having more people to play with so more access to raids and dungens.. Also help build a more stable auction house economy. Then people wont have to worry about having the servers that are like ghost towns because people quite and cant really do anything on a server cause theres really nobody to play with.. So with just increasing server cap when u do have people leave after 6 or 12 months then there will still be a lot of people still on it after to play with.