It happened to me couple of times, I was reading a book or an article that should have helped me to understand things, but after a few pages I've stopped with: Hey, this is what Laozi wrote in 10 words and even much cleaner way. So I'm better opening daodejing again and again and finding new things inside. + other "classics", of course.
Additionally, it makes more sense to me to understand a bit thinking of the shamanic pre-daoist era to find out where Laozi came from, than studying "modern" texts.
There are interesting discussions in forums linked by you, but I haven't found any, where my thought would be helpful, yet...
Neiye really brought a bit more light to the overall picture. Thank you for pointing on that.