>cropping AIDS-chan out of the picture
I hope you are not claiming that they are different people.
I was talking about Horiguchi "Keion face" Yukiko, a KyoAni character designer and animator. She's bunbun's older sister.
Oh yeah, I remember hearing about that before but I'd be surprised if it was actually true. Also,
You may make a case for K-ON! and Tamako but the rest are pretty different.