In the wake of the Christchurch mosque shootings in March 2019, it emerged that the alleged perpetrator, Brenton Tarrant, had three years earlier given fulsome praise to Blair Cottrell as a leader of the far-right movements on social media. He made more than 30 comments on the now deleted UPF and TBC Facebook pages, singling out Cottrell for praise and disparaging Neil Erikson and Shermon Burgess as "useful idiots". The group was banned from Facebook after posting Islamophobic messages in the wake of the Christchurch massacre.