Do you mean like Isaiah Bennett ? I learned about the inconsistencies of Mormonism from the Mormons I knew personally. But you can learn more about the problems in LDS teaching and practice through a number of resources, especially Isaiah Bennett, Inside Mormonism: What Mormons Really Believe (Catholic Answers, 1999). Citing the Book of Mormon and other LDS texts, this volume provides good information from a former Catholic priest who became Mormon and then later came back to the Catholic faith.The following are some helpful websites, both Protestant and Catholic. The last one also provides links to many additional relevant sites.
Perhaps it is more accurate to say...the way some here parade them around.