Yep, looks like a problem with uploads to stack.imgur.com -- we've contacted them via email and phone, and have disabled uploading for now until they can get it fixed.

Yep, looks like a problem with uploads to stack.imgur.com -- we've contacted them via email and phone, and have disabled uploading for now until they can get it fixed.

edit: looks like they fixed it, so we're re-enabling uploads now.