User blog comment:ChishioKunrin/Why do people mix up Summer and Yang's mom?/@comment-9464517-20150527160109

Because people innocently get stuff mixed up all the time, and it's really not worth the energy to yell at them for doing so. It's a pretty innocuous mistake, and nobody's perception of the show is going to be thrown completely to the wind if and when Yang's mother shows up alive.

/thread