I'll make this short and to the point: over the past few years, the word "hater" has become some sort of verbal monster; being spewed out of mouths of any and everybody. As soon as you so much as disagree with the way a person breathes, you're labeled a hater. Maino released "Hi Hater" and I practically laughed my ass off; I wasn't aware that Maino was known or cared about enough to have haters in the first place.
Worse than the abuse of the word is the actual reasoning behind why people use it. Some people love to say they have haters for the most minimal of reasons--just because someone doesn't like the color of those Chucks you have on does not constitute them as a hater, genius. They just don't like the color. Now, if that person happens to hop in their car and roll over your Chucks with your feet still in them, yelling something like "You'll never wear another pair of Chucks again, mutha f&*^@!", they miiiiight be a hater. Or in serious need of a room with padded walls and a jacket so they can hug themselves all day.
In closing: kill it, people. There's nothing wrong with people disagreeing with your style/way of life/occupation/etc. No one has to like or appreciate everything you do. However, if there are people who spread vicious rumors or basically attack your character, that person is unhappy and could be labeled a hater. Other than that, keep it moving; realize that in life, there are some people who thrive on being unhappy, and you could be the fuel that keeps them going.
By the way, if you're one of those people who are constantly claiming to have haters, but have no evidence to back it up whatsoever? Anddddd not only do you make the claim, but notice that people tend to stay away from you? Anddddd you're a person who, with the more haters you claim to have, the less friends you actually keep?
You don't have haters. You're probably just an asshole.