It's amazing how such tiny little marks prompt such big feelings. Punctuation -- especially commas -- create more tension in workplaces that the person who cooks fish in the break room microwave. (I need a new example since so few of us work anywhere near a break room now).
Our most popular post -- EVER -- was last year's she-said/he-said on the serial comma. If you liked that, check out this LitHub roundup of writers' thoughts on punctuation marks (though not the dieresis, but maybe that's not punctation?).