If a peer has unpardonable behavior, it will even be driven out of the system.These make P2P file sharing system work normally, and the capability of network will be increased.

• 相反对网络贡献很小、交易中信誉值很低甚至有恶劣行为的节点，将逐步被系统置于网络的不利位置以限制其行为甚至禁止接入网络，保证了P2P共享文件系统的良性运行，提高了网络的性能。