User blog comment:Sannse/Five Things Every Admin Should Know/@comment-303594-20150710093452/@comment-4189499-20150710121733


 * "Special:AllMessages has a list of all the system messages on the wiki"

I've found that list rarely has the message I need on it. Instead, if you want to know what system message to edit, append ?uselang=qqx to the end of the page's URL and it will show you which messages are used where.