Yardley earned a degree in accounting from Bangor University in 1990. Yardley started an accounting firm in 2000 and took over publishing music magazine Terrorizer in 2002 under the auspices of Dark Arts, Ltd. Yardley later added the titles Dominion and Sick Sounds.
In 2008, Yardley made a gender transition. In 2014, Yardley became heavily involved in online fights about transgender politics, specifically rejecting the idea that trans women are women.
In 2018, Yardley was suspended from Twitter for saying Green Party spokesperson Aimee Challenor is a man. In April 2018 cisgender woman Helen Islan brought a “transgender hate crime” complaint against Yardley that led to police involvement and a drawn out investigation. The case was dropped in Yardley’s favor in March 2019.
Since that time, Yardley has been embraced by gender critical people, appearing on their platforms and writing about trans community controversies.
Yardley, Miranda (August 30, 2016). What Autogynephilia is, and what is it not; a brief note. https://mirandayardley.com/en/what-autogynephilia-is-and-what-is-it-not-a-brief-note/
Yardley, Miranda (July 10, 2016). 17 Signs I Am An Autogynephile And Didn’t Know It https://mirandayardley.com/en/17-signs-i-am-an-autogynephile-and-didnt-know-it/
Yardley, Miranda (July 10, 2016). Pornography And Autogynephilia In The Narratives Of Adult Transgender Males. https://mirandayardley.com/en/pornography-and-autogynephilia-in-the-narratives-of-adult-transgender-males/
Yardley, Miranda (June 17, 2017). A History of Autogynephilia. https://mirandayardley.com/en/a-history-of-autogynephilia/
Miranda Yardley (mirandayardley.com)