For those for whom this is their first MMO:

MMOs at launch need to be very careful about the amount of servers and capacity they have, because there are always about twice to three times as many people playing at launch than there will be after the first 30 days. And it's even higher for ARR because those that bought 1.0 didn't even have to pay for a box for ARR.

As such, they can't be overzealous about their servers because if they are, then they have to do server merges only a couple weeks or a month after launch, which would be ridiculous.

Here's some facts you just have to deal with:
-If you choose to play on a high pop server, you're going to have queues and lockouts. Period. That's the risk you take by choosing a high pop server.
-You have a choice to not play on a high pop server. You aren't "denied" playing the game. There is always a server you can log into and play.
-If you have friends on a high pop server and absolutely want to play with them, then you have basically two choices: deal with the waiting, or convince them to make temporary characters on a low pop server.

For those who have been through MMO launches before and are complaining anyway:

Shut up. You're being nothing but immature.