A study on how Dominos (and Pizza Hut) use dark patterns, UX tricks and design psychology to overcharge customers.
https://builtformars.com/case-studies/dominos-pizza
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@estherschindler: I caught on to that a while back. I didn't do a detailed analysis, though. I just noticed rather rapidly that there was a lot of bait-and-switch, sloganeering being passed as service, and such... and that pizza got a lot more expensive.