In my experience from the couple of times I clicked an IPFS link years ago, it loaded for a long time and never actually loaded anything, failing the first "I wish we could serve static content" part.

If you make it possible for people to donate bandwidth you might just discover no one wants to.

I think that many are able to toss a almost permanently online raspberry pi in their homes and that's probably enough for sustaining a decently good distributed CAS network that shares small text files.

The wanting to is in my mind harder. How do you convince people that having the network is valuable enough? It's easy to compare it with the web backed by few feuds that offer for the most part really good performance, availability and somewhat good discovery.