[praptak]

> It really bothers people when you don't like what they like.

I don't believe that is the reason behind snob bashing. What really bothers people is aligning ones likes and dislikes as to boost perceived social status. People perceive it as grabbing social status undeservedly, so the social instinct for punishing transgressions kicks in.

> even if someone is being a snob, so what? Ignore them if their opinions are bad.

You have missed an important point the author made. It was not about one snob but rather a whole social group.