Neither are affiliated with us or r/CTH, they were just popular resources to share when a common discourse was about how you can't cede gun-ownership to the right.
In fact both very explicitly do not engage in any kind of demonstration or protest. The closest thing I can think of are like self-organized affinity groups, but that basically amounts to saying "there are people with leftist beliefs who also do praxis." There's absolutely not a "militia" scene on the left that is in any way comparable to the one on the right ()
I always assumed that was why John Brown Gun Club had such a vocal stance against that kind of stuff. Didn't hear about Elm Fork's trouble (though if any branch was gonna do it, I'm not surprised it was them). Hopefully nothing comes of it.
There is no jbgc stance on anything. Anyone can start a gun club and call it whatever they want. The sra is a different thing, they're a national organization with 501c status and cannot take part in any official action.