His name is Barry Duncan and he creates them constantly. Gregory Kornbluh profiles the guy:
One way that [Duncan] categorizes [palindromes] is by length. Those of one hundred or more characters are labeled simply "long." Palindromes of one hundred or more words he calls "epic." And palindromes of one thousand or more characters are called "mega." …
One cardinal rule to which he always returns involves "doubling in the middle," which he calls a "near-fatal error" and the mark of an inexperienced palindromist. As he explained in our first conversation about palindromes, "If I say to you, ‘straw,’ and you thought, well, ‘straw warts,’ that’s a palindrome, but the w is doubled, so it only calls attention to the palindrome. What you want is for some letter to be the reversible hinge. So if you said to me, ‘straw,’ I would think, ‘straw arts.’ And then that w is removable, and it could be ‘strap arts,’ ‘stray arts.’"
The Dish 