The dickline itself is mostly a curiosity, but that webpage you linked to has good, simple explanations of bitcoin and how it works.  The webpage has the kinds of explanations that one might actually be able to use in discussions with people who don't appreciate the reality of crypto.  I'm remembering in particular a cafe owner whom I met in Uruguay a few years ago.  He was convinced that bitcoin is a criminal fraud.  You have to use the simplest descriptive language possible with some people.  The dickline webpage has good examples of simple explanations that almost anybody could understand, if their minds are even the littlest bit open.
Having said all that, I don't think the length of John McAfee's dick has very much to do with Bitcoin exponential price analysis.