This setup means that #projectTokens will form and dissolve as necessary. If everyone leaves, all ETH will be refunded and all #projectTokens will cease to exist. If you buy in early, you will get more tokens for the same price. If you buy in later, you will get less tokens for the same price. If you sell back into the pool, you will get less ETH per token vs selling back into the pool when the outstanding supply is higher.The value derived from curved bonding is that it rewards participants for being early and buying tokens in that project. If they leave at a later point, selling their #projectTokens back into the communal pool will net them a reward. The reason you want separate tokens for separate projects is so that it more easily fits the value being produced from these separate projects. The crypto-economic feedback loops necessary to sustain certain systems will only work if the value being produced is mapped to its own token. For more info, read here: