Absolutely, people still need money. So P2P would not solve that bit, but at least the donations can go directly towards content creation rather than having to cover server costs as well.

Maybe a silly idea, but what about a P2P-based video hosting! Hear me out:

We have more computing power and bandwith in our homes than ever before. We know that sharing data and files via P2P works, is resiliant against attacks, and scales really well.

No server costs mean that people could support creators by seeding the content to other peers. One cool thing about that would be seeing how you are making a difference, in real time.