Fountain Pen on Parchment Zen and the Art of Pen on Paper

In just the past two days I have come across two articles, both of which “how-to’s” about good writing, both of which were rife with writing errors. What errors? Passive voice, pseudo-academic style (in other words, difficult to understand), agreement of pronouns and antecedent (That person caught their coat in the door), crazy sentence construction, ...