I enjoy looking around Amazon but much of the fun is offset by my back button not working on the site.
This is an old issue and a Google search brings up lots of people who share my frustration. One of the Google hits is actually this 2011 SDMB thread.
Given how well publicized the problem seems to be, and considering that the folks at Amazon have had years to change things, I assume it’s deliberate and not a bug. Why is that? What does Amazon insist on making your browsing experience less convenient than it might be? Isn’t it a truism that you want your customers to enjoy everything about your product?
In the Dope thread linked above, some claim that the back button has to be disabled to prevent the Amazon site from mixing up a change to your product order with an addition to your product order. Can that really be the reason? Seems like a kludge ‘solution’ to me.