@oatmeal While I guess Stack Overflow may disappear, not due to AI but because mismanagement (like they trying to make it look Reddit). I don't think other sources of knowledge will disappear, mostly if AI training becomes harder and more expensive, using them will become less and less desirable.
But, sure, while on one hand many coding problems are repeated (I remember searching StackOverflow just to find an answer from me from the past), and for them AI looks useful and it's a reason for people to keep using them after the AI bubble pop, not all problems are common and repeated.
And you pointed something really important: I lost count of how many times AI code (or coworker code written by AI) had issues like repeated code and bad practices. Example: wildcard CORS. SO COMMON!