This is something I've noticed more and more of. People identify with their preferences in entertainment media - in the fairly literal sense of making being a Star Wars fan or whatever part of their identity, a big factor in how they think of themselves - to an unhealthy degree. And as a result, they take criticism of media they like personally, as though it were an attack on themselves. Of course there's always been passionate fans of this or that, but this thing of people seeming so personally invested seems like a relatively new, mostly online thing. It was already quite noticeable by 2008 and has only grown louder and shriller since. It's actually a little disturbing, the frequency with which people (a) feel personally attacked by the existence of people with different tastes than themselves, and (b) even when not doing this themselves, treat it as normal and expected, rather than, as it seems to me, pathological.