It doesn't fix anything directly, but it's an easy, effective way to show support for people who have been disenfranchised. And it's the sum total that counts,

It doesn't fix anything directly, but it's an easy, effective way to show support for people who have been disenfranchised. And it's the sum total that counts, so every little thing makes a difference. One project making changes doesn't have much of an impact, but if every project on GitHub did the same that would be a very clear message the tech industry isn't satisfied with the status quo. Sometimes all it takes to stop a bully is for one person to speak up because then others that might have been keeping silent will feel more comfortable speaking up as well.