Nobody is buying a wall box on credit, but online retailers figured out if they just enable installment payment everywhere, it provides a small lift to sales at the expense of snarky comments from Lemmy.
Enabling it everywhere facilitates people purchasing things they can't afford and fucking themselves.
The picture is funny but the real thing is filling up a cart with everything needed for a renovation, failing to pay a payment and having it cost you more than list price with the hidden, past due accounts owe us 30% interest plus fees type of paradigm.
Not everyone has access to the financial education that teaches you how bad this is. I see so many people that don't actually understand how credit cards work because they "just got one" after signing up for a rewards program (basically, got scammed into signing up).