 Why does no one on town know who Haron Gorka is?
As far us the gentry of Cedar Falls was concerned, Haron Gorka did not exist. "I mean anyone would like to correspond with Haron Gorka. Haron Gorka...." "If I can't enjoy an association with Haron Gorka directly, I still could get the vicarious pleasure of your contact with him. Each one of you will tell me about Haron Gorka, sparing no details. Haron Gorka lived in what could have been an agrarian estate, except that the land no longer was being tilled. Haron Gorka, the man, was what counted, and the librarian's account of him certainly had been glowing enough. She had not been the only one with the idea to visit Haron Gorka in person.
 He’s not a real resident, but an interstellar visitor.
 Haron Gorka isn’t his real name. Thus, there’s no records of him.  He’s not a real resident. He’s using a fake name while he stays in town.  He travels so much that the people in town haven’t gotten to know him.  He’s not a real resident, but an interstellar visitor.