Haha. You found a few play projects. Most of my code is not open source. And most of my FOSS stuff was written before git was conceived , let alone github.
The point of the initial comment is that JJG, in his/her technical ignorance, is in no position to judge the capability of various engineers. Let alone his/her making of blanket statements about a group of folk, without even being able to identify one or two of said group.