Coworker replies all all 3000-employee company-wide emails with pointless “thanks” and “noted” messages, flooding inboxes, making whole office slowly lose it: ‘During lunch yesterday I got three separate reply-all emails from her within 20 minutes’ – FAIL Blog

Then comes the institutional cowardice, because no modern workplace wants to address a small, annoying behavior directly. IT sends polite guides. HR calls it engaged. Management hopes the problem will depart of old age. So the rest of the company does what companies do best, passive aggression with a side of arts and crafts. Mock chains, bingo cards, and group coping mechanisms that exist only because nobody will have the one conversation that would take two minutes.