Title says it all. It's impossible to go to the Island Sanctuary because of this many people.
There's a 24/7 queue, even at dead hours 1AM~7AM, it's way too full with all the new characters and Wanderers and Travelers both. Ul'dah, Limsa and even Gridania are a laggy mess.
Please block entry from Travelers and Wanderers and disable the creation of new characters.