Having a particular skill, such as "knowing javascript", is also a signal that "pushes already disadvantaged groups further down the list of candidates". So, you tell me.
You're not the first person to think about these issues. This stuff is no different than people publishing their portfolio on artstation, or even on their personal website. And on SO specifically, it's also very similar to having on your CV a list of places you volunteered at: Unpaid jobs to show off your skills.
As an individual I can see listing anything that gives me an edge. As a hiring manager I have to be careful to be fair and feel an obligation to avoid signals likely to filter already disadvantaged groups. So for a manager these considerations do come down to a binary: will this signal be used?
> Having a particular skill, such as "knowing javascript", is also a signal
I'm not advocating removing requirements undeniably needed for a role.
SO, volunteering, and unpaid work aren't generally needed for roles I hire for. Therefore as signals they're less useful, and may tend to bias in favor of those who already have other advantages in life.
> You're not the first person to think about these issues.
Did I suggest I thought I was? And what does it matter if others have considered these things? All of us with hiring power each need to learn what is appropriate, or not, in order to make the best decisions.
