What sort of waste you tend to see more, if you do this regularly? Is it the case that people are aware of the cost and “don’t care”, or is it surprising/hidden cost?
There are 2 types: 1) they know the costs and thought it would scale infinitely with money but it doesn't (crashes, hangs, etc) 2) they knew it would cost more to scale but they did not expect it going up quite that fast as it does with more traffic (not linear).