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.
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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