Interestingly, stagnation started around 2014 (in the number of questions asked no longer rising,) and a visible decline started in 2020 [1]: two years before ChatGPT launched!

It’s an interesting question if the decline would have happened regardless of LLMs, just slower?

[1] An annotated visualization of the same data I did: https://blog.pragmaticengineer.com/are-llms-making-stackover...