Zero_Profile There's already a limit on how many reviews can be posted now, by the same user. It
's was 4. Seems to be 1 now (checked on the website). The spam you see is from the time when there were no constraints in place. To post a new review, you need to delete the older review. There might also be a chance that you can post a new review after a certain time (after a day or two), since the review limit was 4 (on the App) a few days ago when I was testing it, but I posted once a day for EXP (obviously, on a book that I created for that sole purpose).