There is no standard or "correct" answer. It all depends on the type of magazine, its purpose, its ideals, and its practical limitations. Every editor does the best she or he can within these parameters.
相信很多編輯人也都被問過這個問題，這沒有標準答案，主要是看雜誌的類型、宗旨、理想和現實的侷限，每一個編輯人盡其所能的把它做到可能範圍內的最好。