It talks a lot about Amazon, but there's no mention of using affiliate links.

The issue is that there's a conflict of interest when a page that gives you advice on what to buy uses affiliate links. If they get a cut of my purchase, then they're incentivized to get me to buy the most expensive alternative rather than the best one, and to buy something rather than stick with what I have if what I have is adequate.

This is not an insurmountable problem, but disclosure is important so I know what's going on.