The honest feedback problem
The people most willing to give you honest feedback are usually the people least qualified to. And vice versa.
There's a specific asymmetry in receiving feedback that took me years to see.
The people most willing to give you unfiltered, hard-to-hear feedback are usually people who don't actually know your situation well. They have strong opinions. They're confident. They're often wrong.
The people most qualified to give you feedback, the ones who deeply understand your context, your constraints, your history, are usually the most reluctant. They're reluctant because they understand. They know how much their words would weigh.
The implication
If you want good feedback, you have to drag it out of the qualified people. And you have to filter hard against the unqualified people.
Both are hard.
Dragging it out of qualified people requires creating a container they can give it in. Explicit invitation. Explicit permission. Specific questions. Gratitude afterward, even when the feedback stings. Over time, they trust that telling you the truth won't cost them the relationship.
Filtering unqualified people is harder because their confidence is infectious. They say things with the authority of people who've thought about it deeply. They usually haven't.
The signal
The best diagnostic: did the feedback surprise you?
Feedback that matches your internal model too closely is probably confirmation. Feedback that contradicts your model in unexpected ways, not in predictable contrarian ways, but in ways you can't quite dismiss, is usually where the signal is.