Loops really isn't ready for primetime. It's too new and unpolished, and will need a bit more time.

I wonder if peertube can scale. YouTube has a whole sophisticated system for ingesting and transcoding videos into dozens of formats, with tradeoffs being made on computational complexity versus file size/bandwidth, which requires some projection on which videos will be downloaded the most times in the future (and by which types of clients, with support for which codecs, etc.). Doing this can require a lot of networking/computing/memory/storage resources, and I wonder if the software can scale.