That's not the only explanation for this mess, but it might be the most logical one because this onslaught of blunders is literally as incomprehensible as Dwayne "The Rock" Johnson's movie career. Kost originally e-mailed the Proofreader to point out one of the five erroneous uses of the contraction "it's" and then e-mailed again saying:
I have also noticed in paragraphs two and three, the word "President" is capitalized. I'm not an owner of an A.P. Stylebook, but if it's the president of a company, shouldn't it be lowercase? In addition, the end of paragraph three has an unnecessary "the" in front of president.Indeed it does. And, as has been noted here before, the Proofreader doesn't own an A.P. Stylebook, either. But he does own a New York Times style guide, page 270 of which confirms that when used to refer to the president of a company, the word president should be lowercase.
The Proofreader thanks Stan Kost for submitting the mistakes.