Readers can go to the author’s Web site, see how much money has already been donated, and donate money to the cause of getting his novel out. Note that the author doesn’t care who pays to get the next chapter out; nor does he care how many people read the book that didn’t pay for it. He just cares that his $100,000 pot gets filled. When it does, he publishes the next book. In this case “publish” simply means “make available,” not “bind and distribute through bookstores.” The book is made available, free of charge, to everyone: those who paid for it and those who did not.