水至清则无鱼人至贱则无
[shuĭ zhì qīng zé wú yú rén zhì jiàn zé wú]
Based on the traditional saying 'water that is too clear has no fish; demands that are too stern have no followers.' This idiom means over-strictness leads to a lack of followers or supporters. By using this, the netizen probably wants to express self-reflection about the negative consequences of perfectionism.