Being on a list does not make an arbiter so involved as to need to recuse themselves. If we used that level arbiters would need to recuse themselves so frequently we'd rarely have a quorum.
I was on that list at first, but left due to the insanely high volume and attacks against myself (Supposedly I was not tough enough). I would not condemn folks who have tried to stick with it. The concerns, harassment of our users, are real enough, but are sometimes expressed in overbearing ways.
Fred