I have three blogs on WP. Each about something completely different. Whenever I write a new post on any of them the posts show on the lists of tags with my personal avatar. Since I blog about both Poland and Austen it's impossible to find a picture that would fit all. Could blavatars be used there instead?
Another question: Have you considered enabling people to use several avatars the way it's done on LiveJournal?
And yet another: Could you make some smart device that would enble people choosing from which of their blogs they post a comment? I have to change my profile settings every time I write a post. It's very tiring.
I love WordPress! But the avatars and links to blogs from comment threads are a real nausance, and it becomes practically impossible to post a quick comment on someone else's post because one needs to go and change all of the settings first.