Anonymous 05/15/2016 (Sun) 10:50:44 No. 3970 del
What if the server were to request the entire video, save it for the duration the post exists as an mp4 or webm, and then just upload it as a file?
I know has found a way to allow users to download youtube videos directly as an mp4/webm, no clue if it tracks the IP, but since it would be the central server requesting the video from youtube, and redistributing it to the users (we could run into legal trouble here, and may attract people who just want to have the webm/mp4) only the server would have to send it's IP.

I am just a layman, but it could work.