The problem, imo, is that well meaning folks are brainwashed (by the $ $ beneficiaries) to think that the old shorting rule was swell without realizing the full implications of the whole mechanism — it's duplicative nature, non-transparency, supply / demand self fulfilment, etc.. (equedia.com)
But then, that's the whole mechanism by which gains from trade are made: encouraging competition. (qz.com)
He is literally the finger that presses a button and the whole mechanism starts functioning. (religion-online.org)