[BuyMyBitcoins]

Just because they can collect revenue from other platforms doesn’t mean it will be sufficient or anywhere near what they were getting at YouTube.

[carlosjobim]

Of course not, but it is a hedge against any decrease in revenue from YouTube, as speculated here. A hedge that doesn't cost anything.

[fsflover]

The act of publishing on PeerTube together with Youtube (or even one day earlier!) can be a good protest already in itself.