Someone who, 90% of the time, has music taste that is even worse than so called emo fans.
The most rabid emo haters usually listen to brainless mall metal, play World of Warcraft
19 hours a day, beat off to anime porn, wear clothing with dragons on them, are overweight, and envy emo fans because as pathetic as emo kids are, they still have more friends and are more likely to get laid more than them.
Either that or they're braindead wanksters who like ICP and that lot, spend all their rich parents money ricing out their hondas, think their tough, take pride in fucking STD-ridden skank whores, and will never amount to anything in life.
Cool people who dislike emo are usually apethetic about the genre as a whole, as there is much worse out there.
Emo haters need to reaize that there are at least half a dozen music scenes that are even worse than emo.