not 100% sure but its more about data center capacity at this point then server capacity. It does not matter the number of servers you have, overall it is capped not just by the server level, but in the data center as well. The data center capacity is what is getting hit with duty finder and such issues, so untill its adjusted to handle the load even with more servers same number of people can get let on.

They are improving each day, and will continue to. If your this impatient and so easily angered with such things you should know to NEVER play an MMO in its first few weeks as it takes a bit to polish everything out.