Maybe I missed the forest for the trees, but it sounds like OP is almost discouraging people from contributing to their GitHub profiles?
If you are a well know or experienced dev with a long resume of working for closed-source companies, then, yes, you don't need a GitHub profile.
For younger people or developers switching domains, GitHub contributions and personal projects might be the only way of showing their worth to future employers.
> Maybe I missed the forest for the trees, but it sounds like OP is almost discouraging people from contributing to their GitHub profiles?
It wouldn't surprise me. There is a lot of content online that appears to be created for the sole purpose of finding work or as part of school/university projects. A lot of that is of limited value, which diminishes the signal:noise.
But I think the main point of the article is that it is unlikely to be used in the hiring process. People either don't see if as being of value or realize that it can be gamed.
If you are a well know or experienced dev with a long resume of working for closed-source companies, then, yes, you don't need a GitHub profile. For younger people or developers switching domains, GitHub contributions and personal projects might be the only way of showing their worth to future employers.