It would have been better to say that she has an ideological objection to using they/them pronouns (rather than non-binary identity), so I'll concede that point.
But the thrust of my post is that it's wrong to describe her as someone who is helping the LGBTQ+ community, just in a different way, and I stand by that. She said in her statement that she "write[s] in a gender-neutral way specifically to avoid gender landmines".
I'm sure this is a relatable sentiment to cisgender people who's main engagement with the trans community is anxiety about making mistakes. But this can't be compared to the marginalization trans people face. One way that non-binary people are denied space in our culture is by being erased. It's not a high crime to go out of your way to avoid our pronouns like this, but by doing so Monica is someone who is doing the bare minimum of avoiding offense--she is not helping or supporting non-binary people or fostering their inclusion.
Despite the implication of your reply I am actually not outraged that she could continue to be a Stack Exchange moderator, that seems fine. But I am intransigently against the vision of LGBTQ+ allyship laid out in the GGP, where being a supporting helper just means not being hostile.
Trans people are fighting for our lives in society right now, it would really help if people could find it in themselves to pick the right side, use our pronouns in public, and build the cultural space for us to exist in normalcy, instead of only think about this issue when twitter "activists" have "gone too far" by criticizing someone they like.