The discourse thread was closed before someone could provide me with full details,
but thankfully someone PMed me to tell me where the setting is.
Aparently it’s an admin-only setting located under the plugins area (the url will end with
So when you’ve got time, up that to something between 30 and 50 and it won’t be a problem for any future contests.
The person who provided the information & screenshot (Nichalas Petranek) was helpful, but after a sympathetic reply from Nichalas, Jeff Atwood swooped in and closed the PM.
Jeff Atwood (a.k.a. ‘codinghorror’) has just lost any respect I may have had for him.