A study found approximately 6 million fake stars across 18,617 GitHub repositories, with some repositories having up to 76% of their stargazers being fake accounts. The fake stars are often bought and sold on various websites and platforms, with prices ranging from $0.03 to $0.85 per star. This practice is used to manipulate GitHub's popularity metrics, which can influence venture capital funding decisions. The article also notes that the FTC has rules against fake social influence metrics, and the SEC has charged startup founders for inflating traction metrics.