She did go to Comic Con but for Ringer...not Buffy. I think she wanted to separate herself from Buffy so she wouldn't be stuck in that 'forever-be-labelized-as one character' thing. OR...maybe she was just tired of the Buffy thing and feels it's been done...that and it also drained a lot out of her and was never recognized for what it was at the time. I mean wouldn't you be peeved with all the vampire stuff going on now and look back and say 'I did the same thing for 7 yrs and it never got really appreciated' ?