If it were a few years ago where recording gameplay wasn't as accessible, I would definitely be on the side of a cut off time. However, considering how easy it is, and as Hobz has brought up an ez cap is so cheap there really is no reason not to require video proof. I think what is most important is helping people get started like Hobz is doing. Also even if the person doesn't know before trying to submit a run, first runs are easily beaten anyways, so getting one run rejected when they can just buy really cheap equipment for their second run isn't asking much.