No-one posted an URL (link) into the forum around recently did they? Say, the funny exam answers thread? I've got those pics off about 5 people this week, 'tis very popular. Sticking a link into the forum out into the DMZ would perhaps make the site slow due to a mental amount of traffic.
Slashdotted is the technical term, I believe :)
Just a thought from a grizzled computer scientist.