By participating in the community. Content moderation on HN is so much better than on Facebook because dang is one of us, whereas on Facebook, it's a team of people in a developing country, in a different cultural context. Netflix needs to be run by film enthusiasts, not UX engineers trying to disguise the fact that all the good IP has been pulled back to the streaming platforms of the original producers. Spotify needs to be run by music enthusiasts, not people pushing covers of pop songs to avoid paying royalties to the original artists. And so on.

Indie Hackers is full of people trying to flog their shit AI-powered marketing SaaS, because they've never done anything other than software engineering, so they don't know any good problems to solve. There are uncountably many good problems out there, each with thousands of people who would pay you money to solve them, but those people don't know their problems can be solved by a computer, so you have to go out into the world to find them yourself.