It means that everyone has used the programming language in daily use and is familiar with its advantages and disadvantages, especially its shortcomings, so everyone scolds it. For example, C++ is too complicated and its pointer is too flexible, so it is scolded every day.

Few people use the language, but everyone is not familiar with it, but they see the advantages of those languages that are scolded every day, but rarely mention the shortcomings of this language.