In 2026, people do already prefer to use an LLM for coding help rather than Stackoverflow. The reasons (people on SO can be rude, interactions are stressful, replies are slow, etc) are all risks associated with human interactions in general.
Similarly, many people prefer Waymos to human-driven taxis already!
It isnt the humanness of stack overflow, if anything its the absence of human feeling.
I can search and search, and craft a long thoughtful post and it gets closed or ignored.
The LLM can take a malformed sentence and work out what I am after.