The FIPS Mode link on the home page was broken, so I added a redirect as a stopgap, but I think it would be better to use this page to explain what FIPS mode is, and then include a link to the FIPS_mode() page.
Yes, I agree. And actually the FIPS_mode() page that you have redirected to would be better off as a man page in the source repo rather than as a wiki page. Of course in 1.1.1 this function doesn't do anything at all (although it exists). In 3.0 it will do something again, but that code needs to be implemented.