- If you want inspiration for a new product, don't listen to users, watch them
- To test whether a product is a good fit, ask users for feedback and listen to it
- If you want to incrementally improve an existing offering, don't listen, gather data
I'm over-simplifying, you should read the original post. I also wonder whether it should be "when is it safe to not act on user feedback", rather than "not listening" per se.