Worked in a similar environment. Events and logs. When a single page view does 200+ database queries, triggers another hundred requests, ML services, analytics

Worked in a similar environment. Events and logs. When a single page view does 200+ database queries, triggers another hundred requests, ML services, analytics and other tracking, and a transaction kicks off a chain of a hundred events in your stream, it's pretty easy to reach those insane numbers. That one page view can easily add 1MB of data. Just like performance optimization, it's cheaper to buy more hardware than to pay for humans to think about it and coordinate.