Although the liquidity mining model has obvious sustainability issues, it can make a project open at a low price. The method of saving money first and then giving points or airdrops can only raise the valuation when it goes online, so as not to be criticized. The possibility of opening at a low price and then going higher is too low. However, in order for TVL data to be fully utilized in marketing before TGE, the difficulty of relay in the future has also increased, and in fact, it cannot solve the problem of sustainability.