Miao was born as a second generation in a waishengren family at the time when the long Martial Law period ended in 1987,[1] and grew up in Wenshan District, Taipei.

[10] Miao was one of the activists who proposed a referendum in favor of same-sex marriage in Taiwan,[11] and sympathizes with the democracy, freedom and human rights concern in Mainland China, Hong Kong and Tibet.

[12][13][14] The 2018 Development of National Languages Act stipulates the government agencies to provide interpretation services when citizens participating in administrative, legislative, and judicial procedures can freely choose to use their national languages,[15] so the Legislative Yuan activated the interpreter service for the parliament session in real time accordingly.

[17] Chiu repeatedly interrupted the question process by asking Chen to speak Mandarin Chinese for easier communication, or the session time cannot be lengthened to accommodate the interpretation,[18][19] but Li is not a linguistic professional, hence his translation contains contextual errors,[18][19][17] so Chairman Chen I-hsin intervened when the argument occurred, and introduced the existing synchronized interpretation in progress as the solution same as the common conference practice in the other countries; but Chiu never picked up the earset, yet insisted his way till the session run out of time.

[20] Miao also explained that the multi-lingual working environment is essential for a healthy mind without the "Mandarin Supremacy" (華語至上) attitude to achieve the international level in diversity, equality and mutual respect for a modern state.