Unless I am misreading you, you seem to imply it is VOC itself 'lending' shares to shorters???
Not so, and nor can they (VOC) control what GS do with shares they've bought on market, or from their own clients. Why do they do it you ask? To make a quid, or a dime.
I've never held with the practice, same as I wouldn't back a racehorse to lose....but there you go, folks are all about making money, (or the prospect of), by whatever method devised. To me it just bastardises markets, but I guess there'll be a chorus of those who hold with the warped practice.
VOC Price at posting:
$2.46 Sentiment: Hold Disclosure: Held