The architecture is 'infinitely scalable,' which works perfectly until Cloud Bill shows up at the end of the month.
"Your small feature has completed auto scaling. >> [music] >> Wonderful. Add one more thing. I can scale that for a price. Why is the graph vertical? Because optimism compounds hourly. tinycto.tv [music] The system remembers. Haha."
This occurs when teams decouple the engineering decisions (auto-scaling, logging verbosity, instance sizing) from the financial constraints of the business.