The meme was largely received positively, though Law reported being doxxed and harassed by some for his interest in the MTR, due to its alleged collusion with government authorities during the 2019–2020 Hong Kong protests.
Law was interviewed by local broadcaster TVB News, and said, "This is a song lyric I thought of, 'I'm really excited about the opening of the Tuen Ma line,' something like this that can describe my feelings right now.
"[3][4] The part "I'm really excited about the opening of the Tuen Ma line" was sung to the tune of Greensleeves, an English folk song used as the background music for the listening tests of the Hong Kong Diploma of Secondary Education Examination, the city's university entrance exams.
[6] Around a year after the initial interview, Law was invited by the MTR to appear in a music video celebrating the opening of the East Rail line's cross-harbour extension to Admiralty station.
The video was titled "I am very excited about the East Rail line crossing the sea" (東鐵過海真的很興奮), and was posted on the MTR's Facebook and YouTube pages on 12 May 2022, three days before the opening.
[12][13] In an interview with South China Morning Post's youth newspaper in July 2021, Law talked about how his interest in trains is connected to his autism, and that he had been producing YouTube videos about the MTR for many years hoping to bring joy to other people.