I have a book written about grammar and punctuation that says that comments punctuation, apart from some specific rules like apostrophe use, can be considered as a personal style to add flavour to writing. If I had to write a sentence, I would probably go for “This is a good sentence, you now have bracketing commas in the right places.” At least it reflects the statement accurately. That is the best message in English.

William Shakespeare has been said to have been far from consistent in his use of English; yet, allied to fine plots, found worldwide fame for his

oeuvre.