This looks like the same thing Etsy has been doing since early this year. https://www.theverge.com/2020/2/26/21155193/etsy-advertising-program-angers-sellers-cu

This looks like the same thing Etsy has been doing since early this year. https://www.theverge.com/2020/2/26/21155193/etsy-advertising-program-angers-sellers-cut-of-sales https://www.theverge.com/2020/2/26/21155193/etsy-advertising... Ad landing pages feature prominent links to competitors' products at the top of the page.