What are the "prey in the hands of famous catchers" in The Life Hunter and "another interesting purpose" that Nietzsche refers to in the third paragraph?

Contact the first sentence: "Life is like a stray prey." Nietzsche and Russell are both philosophers, so a famous catcher means a famous philosopher, and prey represents life. The whole story actually refers to the understanding of life truth and life by famous philosophers or celebrities. From the perspective of the article: "Generally speaking, it is often said that the catcher gets the feather and loses the whale", and it is also wrong to use celebrities as examples to illustrate that celebrities think about life.

The sentence "another interesting purpose" is only the author's understanding of Nietzsche's original words. We don't know what the author means by "interesting", and I haven't read the full text of Nietzsche's article.