As if the rest of the web plays by the protocol rules. How about Amazon (and most other e-commerce sites) showing you the list of last viewed items? User state

As if the rest of the web plays by the protocol rules. How about Amazon (and most other e-commerce sites) showing you the list of last viewed items? User state is obviously changed by GET requests. That's the reality of modern dynamic sites and I don't see any practical problem in this. FoF (Fear of Facebook) is a really popular game these days :)