It's been quite some time since I was in school, but it seems the author breaks grammatical rules regarding the number of phrases and clauses that can be strung

It's been quite some time since I was in school, but it seems the author breaks grammatical rules regarding the number of phrases and clauses that can be strung together with punctuation. In addition, he uses a semicolon where a dash was necessary. It's dangerous to publicly give a lesson as we sometimes stumble during our lecture (as I probably have done in my comments on the author's essay :) ).