I am self-taught and then later formally educated in CS. I have met (and might sometimes have been among) self-taught people who are brimming with confidence in very bad practices. So like others, I think self-taught is no real indicator of smarts or problem solving skills. It may be an indicator of the willingness to see something through, to not give up. (Less-technical onlookers can mistake this for skill.) But it says nothing about the maintainability, performance, or robustness of the end result. Nor whether the self-taught programmer will bother to keep improving their skills or just be satisfied having solved it once to always do it that way going forward.
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