> the entire idea of measuring a language’s defect rate via GitHub commits just doesn’t make any sense. How the heck do you go from “these people have more DFCs

> the entire idea of measuring a language’s defect rate via GitHub commits just doesn’t make any sense. How the heck do you go from “these people have more DFCs” to “this language is more buggy”? If Github is used by ordinary programmers (what are the reasons to assume otherwise?) i.e., if the sample is unbiased then what is the issue with going from "these [random] people" to "this language"?