IPv4 addresses are scarce. IPv6 addresses are not easy to remember, and not supported everywhere. Has the author never heard of shared hosting providers? This

IPv4 addresses are scarce. IPv6 addresses are not easy to remember, and not supported everywhere. Has the author never heard of shared hosting providers? This already exists. Those tend to be extremely cheap, often cheaper than a VPS, and do not require remembering IPs. You share one IP with many people, and the domain name and the Host header lets the server tell the sites apart. A .com is under $10/month. There are/were also free domains.