When I worked at a company that got like almost 100% of their revenue from ads, we got a very serious warning from an ad agency to stop serving our ads to bots.

When I worked at a company that got like almost 100% of their revenue from ads, we got a very serious warning from an ad agency to stop serving our ads to bots. They gave us like 7 days to fix our traffic or we'd get removed, effectively killing our company. Scary time to be an engineer that morning! That was like 6-7 years ago, though! It's kinda crazy that things have changed this much.