C'mon, surely you could think of something both honorable and profitable that you could promote while the loophole lasts?
Don't take aim at weight loss or mortgages, take aim at searches where the users are looking for a real physical product they could purchase.
Make a page about a product that has good affiliate merchants available, apply your secret, and target the page at some commercially useful searches.
Rinse and repeat, for everything from truck accessories to knitting supplies. There can be big money in small commissions if you get enough of them.
The ideal would be to do this for merchants who pay repeat commissions on repeat sales, then you'd have a chance for some residual income after the loophole closes.