> The solution is to gut your product org, replace management with leading engineers, and hire some of your most fanatic users. They don't need to do anything other than give their opinions, and use the product every day. Put them in a room with your top engineers, and the software will mysteriously get better.
This will just lead to massive selection bias. If all you care about are power users go for it. Otherwise you end up with a complicated system that is going to put off new users.
You can even have different power users who likes different parts of the software. Now it's totally possible to end up with extensive subsystems that don't really gel with each other
My anecdote for this is the the recentish redesign of Musescore. Tantacrul, the ux designer/product manager for Musescore has an hour long video on how he redesigned the interface and UX of the software. He is also a musician so you can call him a power users if you want but that was not the users he had in mind when redesigning the UX