Maybe it also ran a little smoother for me because I used it during the low traffic times.
One thing that might help everything run better is limiting the number of milestones that people can submit. I just clicked on a challenge page that had over 200 images in it… for seven milestones! It gets a little bit silly, really, with all the angles and slight color tweaks that get uploaded. It’s like a bandwidth contest or something.
A cap at 30 or so would be very reasonable. It would give people plenty of room to change directions if they needed do, but at the same time encourage them to “complete” a milestone before rushing to upload yet another image. But maybe it doesn’t happen often enough to be a problem?
Anyhow, thanks again, Mibus!