Why doesn't SE just pay gil farmers 1 USD per million gil, which is then deleted?

Theoretically, the problems with gil farming/selling are:

A. It's cheating, and unfair to people who don't want to buy gil. So people should not be allowed to buy gil.

B. The advertising, which is constant and subscribers do not pay to see.

The problem is not people trying to make a living by selling gil.

The reasons this is a great idea will be listed below: