I do wonder if, given how many TRAs monitor these threads
There's a 'network' apparently as described in this article by Eve Livingstone in December 2018:
(extracts)
Since 2016, Mumsnet—specifically its Feminism board—has increasingly found itself on the receiving end of criticism from trans people and their allies. “When I started using Twitter and engaging in the trans sphere in mid-2017, Mumsnet was constantly referenced both on my timeline and in DMs,” says Joss Prior, a trans woman who is part of a sizable trans community that monitors and discusses Mumsnet regularly. “The whole of the Feminism board was like a spectre hanging over the daily trans discourse.”
Prior points to the now partially-deleted but notorious 2016 “I Am Spartacus” thread in which a user asserted that “men cannot become women, ever. Women cannot become men, ever” and went on to misgender a number of trans men and women, including high-profile campaigners Paris Lees and Danielle Muscato. The post sparked thousands of supportive comments and is consistently referenced in up-to-date threads, with “I am Spartacus” acting as a shorthand rallying call for anti-trans feminists. Attempts have even been made to organize campaigning activity around the phrase.
“It’s a core group of a few hundred hardcore trans-exclusionary radical feminists (TERFs), a tiny percentage of overall users,” says Christine, the mother of a trans child and also part of the network that regularly monitors Mumsnet. (Christine’s name has been changed for privacy reasons.) “Yet the Feminism board is just 90 percent discussions about trans people on any given day.”
broadly.vice.com/amp/en_us/article/a3mn9k/mumsnet-uk-mom-forum-terf-transphobia-feminism
thread:
www.mumsnet.com/Talk/am_i_being_unreasonable/3445268-To-be-shocked-that-Mn-has-been-branded-a-hotbed-of-transphobia