I just stumbled upon the facebookconnect module, which I am considering using. However, how does it integrate with other modules such as forums. If a new user signs in with their facebook account, what would their forum nickname be? Do they get asked for a nickname? Or does it end up blank, or would their facebook name be used instead.
I like the idea of users being able to use their facebook accounts to log in as it avoids them having to remember yet another username and password combination. However, I wouldn't want to end up with heaps of seemingly anonymous posts due to the nickname being missing. The same would go for the ecommerce module. It would be great if people could use their facebook logins (assuming that you can trust them enough), but at some point they would still need to enter their address, etc.