Question: Why did the author of the satire that features the fictional island of Luggnagg say he wrote it?

Context articles: Utopia (book)
Null Island
Gulliver's Travels
Primitive Wars
Starfish Island (DC Comics)
The People of Hemsö
Santo Prosciutto
Island (Huxley novel)
Stitch!
Luggnagg

Utopia ("Libellus vere aureus, nec minus salutaris quam festivus, de optimo rei publicae statu deque nova insula Utopia") is a work of fiction and socio-political satire by Thomas More (1478–1535) published in 1516 in Latin.
 The book is a frame narrative primarily depicting a fictional island society and its religious, social and political customs.
 Many aspects of More's description of Utopia are reminiscent of life in monasteries.
Null Island is a fictional island in the Gulf of Guinea added to the Natural Earth public domain map dataset, located where the equator crosses the prime meridian, at coordinates .
 Natural Earth describes the entity as a "1 meter square island" with "scale rank 100, indicating it should never be shown in mapping."
 Although intended humorously, the fiction has a serious purpose and is used by mapping systems to trap errors.
 Such errors arise, for example, where an image artifact is erroneously associated to the location by software which cannot attribute a geo-position, and instead associates a latitude and longitude of "Null,Null" or "0,0".
 Null Island was developed as an idea in 2011 or slightly earlier.
 Since then, numerous web pages have documented this fictional landmass's flag, geography, and history.
Gulliver's Travels, whose full title is Travels into Several Remote Nations of the World.
 In Four Parts.
 By Lemuel Gulliver, First a Surgeon, and then a Captain of Several Ships, (1726, amended 1735), is a prose satire by Irish writer and clergyman Jonathan Swift, that is both a satire on human nature and the "travellers' tales" literary subgenre.
 It is Swift's best known full-length work, and a classic of English literature.
 He himself claimed that he wrote "Gulliver's Travels" "to vex the world rather than divert it".
Primitive Wars is a real time strategy computer game developed by Wizard Soft and published by Arxel Tribe.
 The game is set in a fictional island known as Primitive Island, in what is called the Primitive Era, Primitive Wars is a quarter-view 2D strategy game featuring 4 factions battling for domination of the Island.
Starfish Island is a fictional Island in the DC Comics universe.
 The island first appeared in "Adventure Comics" #256 (January, 1959).
 It is the central location of Green Arrow origin stories.
The People of Hemsö (Swedish: Hemsöborna ) is an 1887 novel by August Strindberg about the life of people of the island Hemsö in the Stockholm archipelago.
 Hemsö is a fictional island, but it is based on Kymmendö where Strindberg had spent time in his youth.
 Strindberg wrote the book to combat his homesickness while living abroad in Germany and France.
Santo Prosciutto is a fictional island in the (also fictional) Italian West Indies, acquired by Italy in exchange for part of its colonial possessions in Ethiopia.
 The island was created in the writings of the columnist Calvin Trillin; it is sometimes used by economists as an example small country, and is cited approvingly by the New York Times’s food writer, Craig Claiborne.
Island is the final book by English writer Aldous Huxley, published in 1962.
 It is the account of Will Farnaby, a cynical journalist who is shipwrecked on the fictional island of Pala.
 "Island" is Huxley's utopian counterpart to his most famous work, the 1932 dystopian novel "Brave New World", itself often paired with George Orwell's "Nineteen Eighty-Four".
 The ideas that would become "Island" can be seen in a foreword he wrote in 1946 to a new edition of "Brave New World":
Stitch!
 (スティッチ!
 , Sutitchi! )
 is the Japanese anime spin-off of Disney's "Lilo & Stitch" franchise and the successor to "".
 It debuted in Japan in October 2008.
 The show features a Japanese girl named Yuna in place of Lilo, and is set on a fictional island in the Ryukyus off the shore of Okinawa instead of Hawaii.
 The island is called Izayoi.
 A second arc of the original series, called Stitch!
 ~The Mischievous Alien's Great Adventure~ (スティッチ!
 ～いたずらエイリアンの大冒険～ , Sutitchi!
 ~Itazura Eirian no Daibōken~ ) began airing in Japan on 13 October 2009, completing Madhouse's 56 original episodes of the show.
 A sequel series from the original two-arc anime, entitled Stitch!
 ~Best Friends Forever~ (スティッチ!
 ～ずっと最高のトモダチ～ , Stitch!
 ~Zutto Saikō no Tomodachi~ ) aired on TV Asahi on 6 July 2010, with Shin-Ei Animation taking over production.
 Then, a TV special, continuing from the sequel series entitled Stitch and the Planet of Sand (スティッチと砂の惑星 , Sutitchi to Suna no Wakusei ) aired on 16 June 2012.
 Following this, three years following the release of "Stitch and the Planet of Sand" and announced on 26 June 2015, a TV special entitled Stitch!
 A Perfect Memory (スティッチ！パーフェクト・メモリー , Sutitchi!
 Pāfekuto Memorī ) aired on August 7, 2015 as part of a "Stitch!
 New Specials" series (a line that "Stitch and the Planet of Sand" started).
Luggnagg is an island kingdom, one of the imaginary countries visited by Lemuel Gulliver in the satire "Gulliver's Travels" by Anglo-Irish author Jonathan Swift.