I would suspect that if a particular Mod really had that type of attitude, over time, there would be posters escalating to the CD. And I would guess if it kept happening, the Mod in question would either change their behavior or the CD would probably "retire" that particular Mod.

And since we're playing the "it could be" game, it could also be that a particular poster is the one harassing the Mod. And I would suspect that just as the Mod might be "retired" if they kept on causing problems, a poster could find themselves "retired" from posting if they kept on causing problems as well.