I am struggling to come up with a different definition for hating than just dismissal. What do you call it when you don't try to think about how something could change to work or be better, and instead just say thats dumb. Sounds like hating to me. How else can it be defined?
A person that simply cannot be happy for another person's success. So rather than be happy they make a point of exposing a flaw in that person.
Hating, the result of being a hater, is not exactly jealousy. The hater doesnt really want to be the person he or she hates, rather the hater wants to knock somelse down a notch.
I don't think his comments are really to do with not being happy about a persons success etc, it's nothing personal, he simply did not believe the idea would take off.