will soon add a 'upload scene related images' on create/edit scene form if that's what you meant.

I really like that idea! That sort of skirts IP issues while giving the user better intuitive experience of the remembrance of the cinematic moment :)

PS Hate to be boogie, but I can see this as being a great driver for sales of the episodes/series themselves, i.e. "to watch the whole scene, purchase here"

Hey achillesheels, added the 'scene related images' feature. Now users can upload screenshots of the scene.

If nothing else, that significantly changes the backend scale required. You should trivially be able to host (show, timestamp, text) in a SQLite database for a very long time. Expanding to screen caps adds all sorts of complexity: legal rights, consistent resizing, CDNs, EXIF stripping, what if some joker uploads shots of pornography, etc

All of these things (except the legal part) are trivial. You don't need a cdn, just use s3 or blob storage and put the blob id in the cdn. If you really want, you can use a cdn for responsive images based on screen width.