I would say the difference here is that no one is going to read it and see the code. As much as people fantasise about reading code, few actually do it and those that do are broadly wasting their time.

Your welding example is flawed because because the welder is showing things as examples. He compresses the range of things the tool can do into a useful format and presents that to people, rather than just welding some metal together without commentary. If this project and the techniques used to create it were documented, it might be comparable. A discussion of the solution to a given technical problem can be interesting and would be the equivalent to what the welder when he discusses the capability of his tools.