Maybe the fix is to require the submission to include the timestamp start and end. And if there is also copyrighted imagery, that the submission include black b

Maybe the fix is to require the submission to include the timestamp start and end. And if there is also copyrighted imagery, that the submission include black boxes around the restricted imagery (for video imagery the would include the timstamp start and end). Then, the resolution would be to wipe out the original audio and black out any imagery similarly. Thus if a car drives by playing something copyrighted, it would simply cut the audio for a few seconds. No loss of revenue to the original poster. And beyond that, provide the video poster a chance to edit the video without the original sound/images. If they re-upload it with the sound/images still included, then they can have negative consequences for their account. If they re-upload with everything "fixed" then they shall have no negative marks on their permanent record.