One of the things I'd also really appreciate is that the scale is too small. A 1-10 scale makes much more sense to me.
Sorry a bit out of topic, should we rate novels here with the same approach as appreciating classic literature or rating it based on only by our emotion or taste preference? (ex: If the mc is not what your ideal type mc therefore this novel is 1 star regardless the plot, writing styles, creativity and originality of the author.)