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There's also the 'Unlisted' option here. Perhaps they could integrate a timer option into that. So you could mass upload into Draft, then add titles/tags/folders/descriptions and move them into Unlisted with a countdown timer before they automatically move into Public.

You can put stuff up to YT so that it's unlisted, in advance of posting dates, then just flip the public flag from the app/site. It's not quite automatic drip, but it allows you to mass post and drip it out as you see fit.