So having a harmless backlink invalidates the good content? This is not spam at all, this is just great SEO/business. Yoast gets traffic to their site without

So having a harmless backlink invalidates the good content? This is not spam at all, this is just great SEO/business. Yoast gets traffic to their site without having to create the content, CreditLoans gets a good quality backlink in return for creating the content. Everyone are happy.