As an LLM skeptic, I will say it’s been nice for learning new languages and frameworks for a side project (e.g. learning js/react as a backend/data guy). Things I’d probably not have bothered to learn because it’s just too much work and I’ve got enough value in my current skills. I don’t find it particularly helpful in my primary languages/frameworks though.

I also use it to generate some discussion on ideas. For example, the other day I asked if to consider pro/cons of technical approach A vs B. I don’t have to trust the output, but it’s usually good enough at helping me sketch out the problem space at a high level.

I only have personal data. Things that would have taken me a long time before take me much less time now.

Number of Stackoverflow visitors going down by a lot, come to mind