When you open the diff in the url above, click a link such as "history". It will show you Wikipedia:Wikipedians history rather than the administrators' noticeboard's history. This can make it complicated to revert vandalism.
Version: 1.11.x
Severity: critical
OS: Windows XP
Platform: PC
URL: http://en.wikipedia.org/w/index.php?title=Wikipedia%3AAdministrators%27_noticeboard&diff=143799721&oldid=143799648