Not advocating 'For' or 'Against', but there was a similar discussion several years ago.
The difference discussed was a treatment of dividends paid by the company you hold but loaned to a short seller.
You are still entitled to those dividends, and they will be paid to you by that short seller. But they will be treated as an interest, so they are subject to different tax rates.
If you are a high income individual, you would try to do anything possible to shift the same dollar amounts into lower taxation category. This will be moving those dollars into the category with the highest tax rates.