It's not surprising that our spirited debate about the English gerund has broadened. Once you realize that, as I said in that thread, grammars are not divine laws handed down to us by some higher authority, but human constructs afflicted with all the beauty and flaws such constructs often have, the differences between the approaches underlying various grammars (especially if they deal with the same language!) become indeed an intriguing topic. So, let's talk about grammars and grammarians under a more general perspective.
As an introduction, I suggest that you read my comment from July 8, 10:32 am, on the post named "Gerund vs. present participle" below.
"Bare-handed speech synthesis"
10 hours ago