Undisclosed affiliate relationships are against the law in the US: https://www.ftc.gov/tips-advice/business-center/guidance/ftc...
I have a lot more respect for the sites that prominently disclose their relationships, like Wirecutter. Most of these sites are a business, they've gotta make money somehow. But IMO most readers aren't seeking out such disclosures automatically when they see a "review", so the hidden-in-the-footer nonsense is entirely useless.
"Whether or not you choose to get free credit monitoring from Equifax, the company will continue to collect information about you."
In other words:
"Even though we got hacked, we're still going to collect your information so it can get leaked again, lolz".
Awesome FTC right there.
[1]: https://www.ftc.gov/enforcement/cases-proceedings/refunds/eq...