The worst example thought he/she was dog's gift to newbies and used to start threads offering them the advantage of its sage advice.
I decided way back then not to employ the 'foe' tool against those individuals I'd rather not be reading. It's better seen and corrected than left unchallenged; and in some instances there really are only a handful of people on the boards that can correct the :bs: - where it relates to bottle calves for example, or is a little more scientific than the average rancher's knowledge.
I guess we all know there's many a thread where bad advice goes unchallenged, never really going to change esp. when you account for the range of climate/soils/topography &c Heard an old farmer say once his mentor used to tell him there's twenty ways of doing a thing and they're all right. I've turned that quote over and over in my brain trying to work it out in the ten years since I heard it, and I still think it's wrong.