One thing that I wrangle with (but the IndieWeb does permit) is the idea that a domain is an identity. Yes, domains are “cheap” now. I can also throw $5—$7 on lunch every day. That might not seem like a luxury outside our bubble, but things like that can be expensive. So the idea of being able to “share” a domain (either via a subdomain or a URL, like colleges give out “hosting”) is interesting to me. But I'd want to hear from the people who have this problem, versus attempting to propose something prescriptively.