I have spent most of the day putting in a comma and the rest of the day taking it out. – Oscar Wilde, variously worded paraphrase, see quoteinvestigator.com/2015/10/25/c

Commas in The New Yorker fall with the precision of knives in a circus act, outlining the victim. – E.B. (Elwyn Brooks) White

Shatner commas: Oddly placed commas that don’t seem to serve any actual purpose in punctuation, but make it look like you should take odd pauses, as William Shatner does when delivering lines. – Author unknown

The rules of punctuation seem arbitrary. How can they not, when an apostrophe looks like nothing in this world so much as a comma that can’t keep its feet on the ground? Or when, by simply placing next to that wafting comma its twin, one creates (of all things) a quotation mark? – Richard Lederer and John Shore, Comma Sense: A Fun-damental Guide to Punctuation