CC will re-insert a deleted comment if they agree with someone who has written in, to complain about a comment being deleted unfairly. But I doubt that CC will re-insert a comment in any other circumstance.
If a comment is 'not liked', then people will answer 'No' to the question 'Good'. The CC system won't delete for a comment being Not-Good. So it is not possible to 'censor' for this reason. 
Only if comments are deemed Not Civil (either in peer review, or when subsequently Flagged) will comments be deleted.
All this is explained in the CC User guide, I believe.
BTW, I've no idea why your comment here has been deleted - twice. From memory, it was a Not-Good comment, but it was not Uncivil.
Perhaps it was deleted on grounds of 'harassment'? However, it takes more than this, to harass me. And I didn't Flag it (either time).