原因: Demo submission is required to verify all runs. Even if you decide to record/stream the run you will still need to submit all demos from when the timer starts to when the timer stops. Demos of your latest PB have to be available permanently to the moderators, either online via the download link, or on your local harddrive if the download link expires. Demo recording guide here: https://www.speedrun.com/hl1/guides/m3lo4