Yup...CC will.  And has.

I do know the difference between "good" and "civil," and although disagreeing with comments, rarely will I opt for "not civil."
It had to be a blatant personal attack, calling people names, impugning their character, etcetera.  Mere disagreement or dislike of the poster is not enough.

But, in conversation concerning a particular poster who does indulge in personal attacks and bullying tactics, the concept that "uncivil" as a form of censorship was raised.  CC is aware that it is happening, and is taking steps to combat it.