Also lots of devs are getting older, find their priorities in life shifting, and writing blogs about it.
If you guessed a negative number, congratulations on your growing family, because you understand.
I've never shown and outside passion about coding. I moved from C++ to C# back in 2008 and have basically stuck with C# since then.
The job I currently have as the dev lead didn't involve any coding questions just architecture.
Keep in mind I agree with you, but I certainly understand the mindset that the parent comment was criticizing.
I used that experience to get an internship in '95 and that led to a job with the same company after I graduated the next year.
But after trying to catch up because my "9 years of experience at one company" was really 3 years of experience and the other 6 years was just stuck doing the same thing I did the first 3 years, I vowed never to put myself in that situation again. If I see myself not keeping up technically at a company, it's time to either leave or study and do a side project.
I may never publish the side project and it may just end up being a proof of concept.