Memory leaks are not good, ever. The author just has a wrong definition of memory leak. A memory leak is any memory that is allocated, but never freed This

Memory leaks are not good, ever. The author just has a wrong definition of memory leak. A memory leak is any memory that is allocated, but never freed This is not a memory leak in most people's books. A real memory leak is memory that is allocated, not used anymore by the application and never freed. This is a small but important difference. What the author described as "good memory leak" is just allocated memory.