ofc storage is not cheap so the uploader must pay something. Another method that they can implement is sharing costs from earnings. For example if you do not have enough sats to pay to upload, you could say "ok this video will be with pay per view up until will accumulate x amount of sats to cover the costs". So viewers will pay per view and saths will be split between Flare and uploader, until are covering the costs. Then the uploader could switch to free view and just leave the V4V zaps activated. Flare got their part, uploader also could post his video.