Catch-22...you will never see what was censored, so can't judge for yourself. But anyone who has seen some comments, and then seen them disappear, knows that many were not at all "uncivil", just "politically disapproved of". 

I have had some censored myself, that were no different from others that did go through, so it depends on ...who knows what? The Globe, some particularly PC other commenters, some activist group sweeping in at some point? The situation is better now than it was with the old system, but there has been discussion elsewhere of this happening much more recently. 

 I got warned of banishment because I approved as civil an innocuous, if silly, comment expressing  a very traditional view of women as belonging in the home, as mothers, etc. I disagree with it and think most would, but prefer having the opportunity to rebut, than repress. It wasn't rude or "uncivil". But some ultra-PC person suppressed it. I won't give specific examples in case this  gets censored...