Admittedly, I believe Gemini released their stablecoin well after the end of the 2017 bull cryptocurrency market. It was much easier to get people to try your shitty new coin in 2017 than it is now, so demand for any new coin will be lower. I agree that Tether was a hype-driven scam, but I don't think the relative unpopularity of the Gemini stablecoin reveals that.