Ehh, some in there are just sore losers and bandwagon haters. If the Braves aren't number one then whoever is ahead is the team that is "hated". I don't jive with the whole "spoiler" thing either. Good teams should beat worse teams, and every game should have the same weight on the outcome at the end of the year.
I try not to use the word hate for a team. Personally out of the NL East, I really dislike the Phillies FANBASE, that stupid Chop, the dumb homerun sculpture at Marlins Park, and thats about it. I don't really hate any franchise, but some players just piss me off. Case and point, Hanley freaking Ramirez.
It's ok to have opinions and root for your team and I even understand getting pissed off at the other team in the heat of the moment. The caveat here is that don't at least appreciate the other team for certain players or struggles or what have you, then I feel you are missing out on a large part of the game.