You're wrong. Before Icecrown wasn't united with Ragnaros and Deathwing, was full populated but many people had old accounts on ragnaros or the other server and they couldn't play anymore because there was few people, so they started playing on Lordaeron because of the big population. But now, when Icecrown is up, a lot of people with old accounts started playing again, so Lordaeron remained with only newer players.

