An user reported at [[mw:Thread:Talk:Article feedback/Unexpected behaviour: rating appears when attaching "?action=purge"]] that the Article Feedback tool is being displayed when an anonymous user goes to a page such as
http://en.wikipedia.org/wiki/United_States?action=purge
, where the page content is replaced by the text
Clear the cache of this page?
[OK]
Purging a page clears the cache and forces
the most current revision to appear.
It should not be enabled there.
Version: unspecified
Severity: normal
URL: http://en.wikipedia.org/wiki/United_States?action=purge