First off: We never remove or change ISBN's or ASIN's unless they are clearly wrong which in this case they were not. I have reverted these changes. Librarians or Goodreads authors who do so risk having their privileges revoked (I know you didn't mean to run contrary to GR policy, but it's good to have the warning).
Instead we create separate listings with each unique identification number (whether ISBN or ASIN) and then combine the two, which allows the reviews for either edition to show up regardless which edition you're on (merging is deleting a book).
OK, if you look at your book's page now you can see that there are three editions of it. One is the Kindle edition which has an ASIN, one is the ebook edition, and one is the paperback.
Instead we create separate listings with each unique identification number (whether ISBN or ASIN) and then combine the two, which allows the reviews for either edition to show up regardless which edition you're on (merging is deleting a book).
OK, if you look at your book's page now you can see that there are three editions of it. One is the Kindle edition which has an ASIN, one is the ebook edition, and one is the paperback.