I do feel uncomfortable when we start speculating about J.K. Rowling, the person. OTOH, I also think it's perfectly okay to look hard at the way she presents emotional, as well as moral, issues in her text. And nobody has taken a harder look, with funnier results, than starcrossedgirl! Look here:
genfic,
wizarding psychology,
fanfiction,
harry,
depression,
severus snape