Last week I had a vendor tell me that they did warranty service through Amazon, and I should contact Amazon for a replacement, even though I was outside of their return window. It turned out to be a lie. But Amazon refunded me the full amount anyway, without prompting. The handful of times I've contacted Amazon tech support this has been my experience. The previous one was when they replaced a $250 porch pirated delivery, no questions asked.

This behavior genuinely earns them more of my business.

The "danger" of their policies (and I've benefitted from them, too) is that they obviously can be gamed, and they obviously have to have defenses against that - which means if you cross some invisible line (and now likely AI-monitored) you're doomed; no recourse.