Comment by gwern

DOIs link to paywalls or temporarily-unembargoed papers, have to be hunted down (many places hide the DOIs in tabs or, like JSTOR, actually bury it in the HTML source itself!), and break things like section links as well. Adding yet another level of indirection is not my idea of a solution and hardly speaks well of 'archive-quality publishers' that we have to resort to third parties to work around their hideously broken websites which, like Nature, go out of their way to make links not just break but actively misleading.