What's really amazing are the responses there, with all of the generalizations being drawn about humanity, some going so far as to say they hope the world is destroyed. If you stop and think about it, wouldn't you more surprised if there WEREN'T some number of people who behaved like this? Their posts just happened to be gathered in one location, giving the illusion that it's a widespread phenomenon.
If I have to identify an emotional response to this I actually feel more sorry for these people; if stuff like this makes them upset then they're going to be miserable in day to day life and probably have a difficult time functioning. They need help and some kind of rehabilitation, but no one really wants to help spoiled brats.