Hello, I am that person. I have been programming for a long time, but I'm not trying to make any claims that my experience means I know any better. The claim is simply that modern coding practices often produce code that is difficult to navigate and that useful comments and documentation can deliver great benefits.

I do make some suggestions on how to approach those things, but they're simply suggestions based on my own experience, I'm not trying to assert any kind of absolute correct approach.

To be honest, this is half of what is posted here. And 99% of the advices you will get in life.