I often read and heard about burning tokens that were not sold when the ICO project was finished, I also knew that by burning the rest of the token was a strategy so the price of the token didn't fall, but if the DEV and the team didn't burn it was a crime? is there a requirement that the remaining unsold tokens must be burned?
You have discussed a beautiful topic. Because of this, coins cannot be sustained in the market. And ordinary investors lose their capital. That extra token must be destroyed.