Sometimes I come across old answers with little more than a link to another site. And sometimes these answers have been upvoted multiple times.

The answer I most recently came across said only this

I believe that you could solve the problem using the ProxyPassReserve directive. You can read about it here.

Given that this answer isn't useful on its own without the link, I believe it does not live up to our current standards. Is there something I should be doing when I come across such old link-only answers?