What Kwoung said! I've got 13 characters on Test now to run as many of the archtypes and races as I can. I don't have any higher than 15 yet, but the chat is always full. People setting up quest groups all the time as well as almost instant tradeskill help.
It does feel empty though, I'm usually on evenings. Only one or two in same zone and often have them all to myself, even after the first round of moves. So come on in and help us give it a good run!