She is pretty full of herself and a bit overconfident. Just have a look at her twitter account.
Modesty is apparently appreciated here.

I think it's about her personality. She seems to be too self-confident and a little bit arrogant. Little more modesty would work fine to her.

贴个理性的
First of all, I don't hate her. I felt that Kucova incident was stupid and unnecessary, but at the time I thought that she is just young and needs to mature. Maybe she just is like that, dunno.
On a more general note... I just can't identify with Bouchard. She has a very nice game, but emotionally, I can't connect with her. She reminds me of a robot, no emotions at all. With Sharapova, I feel she's still a human being, but Genie? Don't know about her, she just seems way too mature in a way. I know it's good for her results, but still...
For other players, I can still see the FUN that they have competing. As for Bouchard, it sometimes seems like she is not even playing for herself, but for someone else. It's strange to explain, but that's what I feel when watching her.
Over-confident might also be a good word to describe why she is not particulary liked on here. It's good for her confidence on the court that she believes in herself, but her press conferences sometimes sound like she is not a single bit surprised about her results this year. That's quite hard to believe. Simona, in opposition, is way more down-to-earth. She said she believed she can be at the top, but never expected to have a stunning year like she had. I just think that's a better way to communicate.
Also, I don't like her voice. But that's not her fault at all.

For me: her attitude just grates, excessive hype (thanks to a certain Canadian at the WTA) before she accomplished anything significant, Handshakegate.

Because she's a disrespectful Bieber/Reagan-adoring pretentious Republicon brainless blonde. And she's lame too.

dumped Laura Robson after it became apparent she was outdoing Laura on the XWTA
said she does not have time for friends but then become BFF with Vuvurenka
turn her back on her native Canada for cash in order to play Hong Kong
cold personality
tried to steal Maria's boyfriend
viewed as XWTA Golden girl by Stacy since they are both from Canada, asked to promote Singapore in January when it seemed like she had no chance to qualify
got to SF of 3 Grand Slams using cakewalk draws
is that enough reasons for you

Her boobs are kind of weird

她不仅仅是拒握，是因为她场下太高傲太轻狂

好帖