The person in question became an admin in the last few weeks. And has been on a massive clean-up operation since getting that power.
A UK politics moderator unknowingly posted that Spectator article, into which Julie Bindel (accidentally or deliberately?) had planted that teeny little mention of Green party incident involving that person.
Which triggered the (semi-automated) "ban/delete everyone/everything mentioning me" thing going on in Reddit.
Causing a knock-on "what the hell is happening" effect where people had to do the research to find what in the Bindel article was triggering bizarre admin behaviour and banning of moderators.