Even if you do have to use a server, it's a lot better to be able to choose to trust anyone with a terabyte hard disk (with about 150 million current domains according to whois.sc, that sounds like enough even if it gets very popular) to not return incorrect data for a fundamentally decentralized store than to trust each of a large group of entities (CAs) to uphold a system whose canonical source (DNS) is subject to censorship anyway.