Registration? Forget it. Won't give my e-mail adress to Carrie Fisher. She might sell it to spammers, in order to buy more booze (she had a drinking problem years ago).
Things would be different if this was a Mark Hamill or George Lucas online chat. Both love their fans, for some weird reason.
If Alec Guiness was still alive, he would probably be tearing and/or burning star wars fan letters... at this exact moment.