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?
I guess they might add the token if they are in an exchange project, they can put it to the liquidity pool in order to maximize the volume of the token that can be used in the entire project.