Not the OP, but from what I remember they would seek out every possible opportunity in every single possible open source community they could find and propose the CoC that they wrote. 0 contributions to the projects, with the exception of demanding that people implement incredibly verbose CoC's in their projects under the guise of "protecting the minorities contributing to the projects".
Most infamous instance is probably this one, in the Opal repo: https://github.com/opal/opal/issues/941
As well as this thread in the Ruby issue tracker that devolves into pure chaos with Ada refusing to actually participate in any of the valid points others bring up: https://bugs.ruby-lang.org/issues/12004
And I'm sure there's many other instances if you look around a bit.