Script Summary: On any web page it will check if the clicked links goes to userscripts.org. If so, the link will be rewritten to point to userscripts-mirror.org
PROBLEM: Userscripts.org is unreachable.
SOLUTION: On any web page, this script will redirect userscripts.org links to userscripts-mirror.org.
DETAILS: The source code is very short and simple to understand. Check it out.
(The code uses a slightly brute force solution, but there is no other way to do it using only a userscript. A full-fledged addon may be created soon.)
REASON FOR USERSCRIPTS-MIRROR.ORG: Even userscripts-mirror.org has been nonfunctional for days at a time. Long before this, users of userscripts.org were observing that the site seems to be in a state of slow decay from neglect. Many people believe that the owner of userscripts.org has given up on the site and the risk of it completely disappearing is high.