I read this from Smolly's article linked by Helen Joyce
Making out that trans and gay people’s movements are being infiltrated by child abusers is deeply disparaging. Yes, the Pedophile Information Exchange (PIE) wanted to tag itself onto the LGBTQIA+ community. They were however never accepted and actively opposed.
If you haven't already, please bear this comment in mind and go and read the current active thread on PIE.