To me hyperlinks are about the only valid use of underline. It’s clumsy and ugly when used for emphasis or in titles, but hyperlinks cannot really be distinguis

To me hyperlinks are about the only valid use of underline. It’s clumsy and ugly when used for emphasis or in titles, but hyperlinks cannot really be distinguished otherwise (a different colour helps as well, but you cannot guarantee that it will be rendered correctly, and it is distracting in a long text).