As a former moderator for a nursing forum, I know from experience that it's a delicate balancing act. Something that may be noncompliant with the Terms of Service may be deleted one day, while a similar thread is left up the next. Some mods are bothered by certain types of posts, like when a member starts out with an attitude, while others may look at them as a challenge. Like everybody else, we're all different, and sometimes we make mistakes. Over-moderation is just as bad as allowing members to be rude and offensive to others. I think PC is moderated fairly for the most part, but it could always be improved. JMHO.