Comment by hilariously

There's no other leading metric that will tell you (directionally) whether you are doing a good job. Did they buy it? Did the conversion get made? Is it easier or harder to sell based on what you made/how you made it?

Yes, you can have whales that fuck you up, or bad feedback, or whatever, but at the end of the day a lot more folks end up siloing worrying about initial impressions, run out of money, build something nobody cares about anyway, and then they get to START at "let's go build what people actually will buy"