No, but you can join any of the guilds (that have room available) and connect to GAF community chat. But since the settings don't stick each time you log on, most people don't bother to connect.
Seriously, I put in a good effort to do that but it's just so easy to forget when you have a build you want to try out or whatever.
One huge problem I found out about for communities: they're split into chat channels once there are over 100 online at once (100 per channel). We don't have that problem yet, but the reddit community ran into it. Really annoying!