yeah kinda a down side to dtube, dtube stores its data on ipfs which is pinned on dtube server but for only so long. potential upside is someone can just spin up their own copy of dtube and all the videos are already loaded via ipfs (except ones that have been deleted/unpinned), I would really love to see dtube have another server/partner store the video data, i might consider doing if i get the time one day (something along the lines of enter in video URL and it stores forever)