I’m not sure how it’s currently being moderated, but it might be helpful to have a 3rd party with no skin in the game do it. The person’s only job will be to ensure nothing overly antagonistic is said on either side. The 3rd party won’t get worn down by negativity, because it is not even remotely directed at them.
I think sometimes users may say things without realising how harsh it sounds, and I wouldn’t be surprised if it impacts the well being of the SLR team. In the same vain, I sometimes see some of the SLR team being quite accusatory towards members that pushes them away further.