Yes, and no. The name is a real one and the characters are real: there is an older gentleman who is into networking and the like, but he denies being the real SN.
In Japanese Wikipedia, he is referred to using katakana, the syllabic spelling system used for foreign words and foreign names in Japanese. This implies that he is seen as a foreigner with a Japanese pseudonym.
Yes, and no. The name is a real one and the characters are real: there is an older gentleman who is into networking and the like, but he denies being the real SN.
In Japanese Wikipedia, he is referred to using katakana, the syllabic spelling system used for foreign words and foreign names in Japanese. This implies that he is seen as a foreigner with a Japanese pseudonym.