Loved his writing style - happily read the whole thing.
3D printers are really cool, in a way that's hard to grasp until you use one. My apartment came with a single trash bin, conflicting with the CC+R requirement that you separate out your recycling. I designed and 3D printed a retrofit to hang two trash bags in a single can. Now I can separate my recycling without having it out in my living space.
I also had a kitchen island that came with a drawer that was shorter than my utensil tray, with a frustrating amount of dead space behind the drawer. I bought a dremel and some wood glue to mod the drawer to fit the utensil tray. I 3D printed the tools I needed to do it - like a jig and some vices.
I've been meaning to design and print some hangers for my plastic instruments - I still have my Rock Band kit from college.
Maybe people who play WH4K care about the OEM seal of approval. Maybe they look down at 3D printing. Surely, it still opens the hobby to people who _don't_ have thousands to invest in miniatures. I would 100% print miniatures if I was into that game.
But it feels like he's too focused on that particular micro-market. Maybe there's something in that subculture that makes them look down on 3D printers (and maybe not understanding that is a useful analogy to other "from the outside, this is dumb" situations). But there's a whole lot of utility in 3D printing that has nothing to do with wargames.
Also, my office has a makerspace. I've seen _plenty_ of people printing pieces for tabletop games. The author has his biases too.