But the person controls the product, and the product will continue to develop, so the person's character is relevant to the quality of the product.
You are making assumptions about a future that hasn't happened yet. It is open-source, so whatever move the person might do in the future, you can fork it anytime.
No they don't, it's permissionless technology. Read the web site.
You are making assumptions about a future that hasn't happened yet. It is open-source, so whatever move the person might do in the future, you can fork it anytime.