I think he has met with some of our empty vessel members
JerryM is IMO one of the least offensive members of this forum. He works and posts tirelessly and shares for the benefit of all who care to read. I am sure his post was not intentionally meant to insult anybody. He has simply stated his perspective of a small number of individuals who only add hot air rather than a genuine contribution to this forum.
I hardly think this is offensive compared to some of the stuff that has been posted on this forum in the past which has remained unmoderated and without comment.
Unless, of course, you recognise yourself as an "empty vessel", I really do fail to see the problem with his post :

And furthermore, it was on topic unlike many others, including my own :-X