I don't think they mean "old" programmers exactly... more like "programmers back in the day". We just didn't have the quality of tools back then. Also, our machines were orders of magnitude less powerful, which meant we generally had to work with a lot less in the way of things like library support, frameworks, etc. I used to have an OS/2 box as my build machine. I think that box had 32k of RAM, and 4.7Mhz processor.