Scams won’t solve problems, but they can distract from real solutions. Git is a fully decentralized protocol and there are multiple GitHub alternatives which are reasonably good so the first question should be why most users actively want to centralize onto GitHub.
This is driven by a desire to boost cryptocurrency which is understandable given that investors are realizing how little value has been created with all of the billions spent, but that doesn’t mean it’s a sound or even coherent idea. For example, what is “permissionless” other than a marketing slogan when you’re talking about a real decentralized protocol which has been that way since its beginning 17 years ago?