The feeling your comment conveys is not "keep learning". The feeling is that by talking about "archaic" stuff, the author isn't "doing himself any favours", i.e

The feeling your comment conveys is not "keep learning". The feeling is that by talking about "archaic" stuff, the author isn't "doing himself any favours", i.e. he makes himself sound old. That's actually his point. Someone who has seen a technology mature and develop over decades, seen the hype trains come and go, projects succeed and fail, might be a bit wiser than someone fresh out of Stanford. He might have some ideas about how to build maintainable systems after working on some that are older than most developers. If you don't see it, that's on you, not on the author for mentioning his particular "archaic" specialization.