At first, when I looked at the number of servers... I also had the same reaction, why that many servers ? But after playing the game for a while, I realised that if we don't have new servers it is almost impossible for a new player to ever be able to catchup with a player with 2 or 3 months of advantage.
And there is also something else that you should consider, as hengli mentioned, the number of total servers is much lower than than, it should be closer to 200 now, with so many merges that have been happening with every update.
I guess that there is never a good way to manage this problems. If the devs decide that the game is not going to have many servers, then players will complain about not being able to catch with the older players, if they decide to launch new servers every week, than players will complain because there are too many servers... In the end will be impossible to be able to please everyone.
But I rather have a bigger amount of servers and then when needed merge the servers that are loosing more players.
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