Half a year of stealth

(The number of recommendations has reached 60 again. Actually, some of the collections and recommendations came inexplicably. During this period, dozens of collections would suddenly increase within a few tenths of a second every day, and the recommendation votes would also suddenly increase by a dozen or twenty votes. So the recommendation votes reached 60, and sometimes more than 70. Hammer carefully counted the number of book friends who really read the book, and the total number of votes was...