I don't think there is a huge anti-Fox thing... but she was probably the weakest (least important character) element in the first two movies (and wasn't too animated with her acting - she was just there as eye candy).
As you could see in the TMNT trailer, she is like a stunned fish, just standing there, staring in all her scenes.... which seemed to be her primary role in TFs. (probably just told by the Director, "just stand there, keep quiet, and look pretty" )

It's also mostly the way she portrays herself as an egotistical celebrity (even biting the hand that fed her, giving her that celebrity status through the TFs movie). There are a lot of movie stars that are humble and charitable, and there are a lot who are fully up themselves, chasing cameras, snubbing their fans at public events and resorting to plastic surgery to regain "beauty" that they think they are already losing.

That's her public image to everyone, but for some members here though, it was our personal interaction with her that we are usually referring to. At the 2007 movie premiere in Sydney, she was the cast/crew member who wanted to spend her time with the media at both movie and media events, while Bay and Taylor were keen to interact with the fans.