Jhaj has been on the sex offenders register since 2016 and has spent time in prison. He is subject to restrictions on his freedoms under the terms of a Sexual Harm Prevention Order.
Since he was released from prison, he has repeatedly staged productions involving children or young people.
BBC News can reveal that some videos of these productions were uploaded to a YouTube account styled as an official performer’s channel.
The account received more than six million views and had over 12 million subscribers.
A video on a different channel included secretly filmed footage of one of the 15-year-old victims he was convicted of sexually exploiting.
Her family has told the BBC that Jhaj “destroyed” her life and said it’s unacceptable that YouTube allowed the video to be watched for entertainment for four years.
Videos of the productions remained on YouTube for years until last September, when the BBC alerted Google, which owns the platform.
It told the BBC at the time that it takes users’ safety seriously, but offered no explanation as to how an account featuring a man with almost no profile or success had 12 million subscribers, or why the videos were not removed.
Over the past two years, the BBC has spoken to videographers, production assistants and technicians who worked on some of the events before they discovered Jhaj’s real identity.
Their records show that the cost of hiring casts and venues has run into hundreds of thousands of pounds.
The cost of hiring the area in front of the Odeon cinema in London’s Leicester Square, which hosts red carpet events for major Hollywood premieres, would have run into tens of thousands of pounds.