Pet Theory about who Tom Bombadil is

[Morthoron]

Originally Posted by Eorl of Rohan

(1) is not influenced by the One Ring (he is already possessed by one of the nine rings and is subservient to the One Ring, so he is not influenced by its temptation)
(2) would throw away the One Ring if he was given it for safekeeping (he is the good - or escapist, if you prefer it - side, why would he want to be involved in the matter of the One Ring?)
(3) lives alone in the woods with only Goldberry for company
(if you knew that insanity takes over you periodically, wouldn't you want to retreat to a deep forest to rest and get away from it all and treasure the few days of sanity that is granted you?)
(4) is able to dissipate the barrow-wights, and right after that, the Nazgul somehow know where the fellowship is and comes to attack them.

In answer to each fallacy listed above:

(1) Simply, the WiKi would not have returned the Ring to Frodo once he had it. That logically makes no sense whatsoever. He would have killed Frodo and that would have been that: the shortest Tolkien story on record.

(2) Nowhere is it said that Bombadil would 'throw away the Ring', rather, he would simply forget about it, lose it or mislay it as it had no power over him and he had no desire for it.

(3) What does living in the woods with Goldberry have anything to do with Nazgul? How, in any stretch of the imagination, does cohabiting with Goldberry make Tom the WitchKing? On the contrary, this proves that Tom is in no way related to the WiKi because a) the Nazgul are not shape-shifters, they remain in their formless nature throughout the books, b) they never appear in a beautiful guise, c) their spirits are only given form by the cloaks and helms they wear. They don't suddenly sprout beards and go in for garish apparel and yellow boots.

(4) It was daylight that destroyed the barrow wights. Gandalf employed the same tactics to turn the Trolls to stone in The Hobbit. The Nazgul were searching for the Hobbits in the area, and the Ring certainly acts as a beacon to draw them to their prey.