Originally Posted By Blakat
No, the original person issuing the challenge needs to be the one to issue a new one. I would rather see the 3 days get extended to 7 to allow people with work schedules to participate. Some folks may only get 1 day per week that they can go out and take a picture.

Seven days makes sense and would remove the need for an extension. I still think there should be some kind of default though in case, for example, someone participates once and their challenge isn't met and we never hear from them again.
2000 Grand Marquis LS HPP, a hand-me-down in 2008 with 128,000 km; 180,000 km as of May 2015
mods: air filter box 'tuba', headlight relay harness, J-mod (around 186,350 km), 70mm throttle body, KYB Gas-A-Just shocks, aluminum driveshaft, ARA3 PCM