Founders

stop listening to users.

observe them, instead.

people either give answers they think are expected, cant accurately remember what they’ve done in the past, or under/overestimate what they’ll do in the future.

You can do user interviews, but the main focus should be on identifying the problem. Then it's your job to solve that problem for them.

Hunter / Analyst / Degen
Addicted to gains but will always take profit

Depends on the stage. Start with problem discovery, yes. 

And when you developed a solution, do interviews or user tests to check if the users can get to the value. (Usability tests).

An interview asking if a solution is valuable is useless, I agree.