Tom Bombadil
Notable points of contention in online discussions surround the origin of orcs, whether elves have pointy ears, whether balrogs have wings, and the nature of Tom Bombadil. Following the announcement of Jackson's movies (from 2001), online fandom became divided between "Revisionists" and "Purists" over controversy surrounding changes to the novel made for the movies, such as those made to the character of Arwen and the absence of Tom Bombadil.