We have already played with Mozilla's cache, to no avail. (Update: Although I should point out that Mozilla 0.9.5 does seem to overaggressively cache many things, regardless of the settings.) And we have also seen this happen with other browsers, such as IE.

Regarding the toll that this would take on PerlMonks: Maybe an expiration after 3 minutes would be extreme. But it currently isn't even expiring after 12 hours. That's a pretty long time. Even the front page changes more frequently than that...

buckaduck