This is why I hate Activision.

Bungie Help ‏@BungieHelp

Due to heavy server traffic, we have temporarily implemented a sign on Queue for Destiny on all platforms.
Sign in Queue for the new Destiny DLC. How on earth can you not figure out how many people will be playing this by now? Already having three previous DLC's to guesstimate users. Not to mention there is a queue for every platform. Plus most people in the queue are just getting kicked out when reaching the end of the queue.