Their prices are insane.
If I want to read a finished novel which is say 1000 chapters, you'll have to buy coins worth what , $150? For one book?????
LNs on Kindle are what $7 and hardcovers $14, regular hardcover books are what $20 at most?
Sure you could get membership and read a few chapters every month, which is ridiculous.
If I like a book, I want to read it now, not a few chapters a month.
Their business model is probably based on a few "whales" who shell out thousands of dollars for books that they like, that's the only logical explanation I can think of.