I've owned some btc since the bubble of 2013 where I bought in around 1k and then just held forever because it kept going down lol, but I had no idea this existed. It's so ingenious, it's legal because it's not using "real money", it's open sourced, and randomly based so no one feels cheated and then it's just easy money for the owner of the site. That's just such a smart play, damn.