John (@Caute_cautim) I believe you have inadvertently mis-represented the report by referring to blockchain as an attack tool. In fact, the described use of a blockchain as DNS alternative is to allow those in a particular community to have a controlled DNS pointing to darkweb sites used for illicit commerce and communication. There is no aspect of an attack against outsiders that the alt-DNS blockchain is part of.
As I read the report, it occurred to me that use of a legitimate public DNS blockchain might help protect against DNS poisoning attacks, which the current public, shared DNS architecture allows. The idea behind DNSSEC is to provide similar protection. Now I am curious of it might be easier and cheaper to use a DNS blockchain in lieu of universal DNSSEC?