"The defence of having anonymous volunteers comes largely from these volunteers and their supporters...."

sounds right to me. In fact, it sounds tautological! ............. I wouldn't expect the defence to come from those very few who object!

Last time I counted, it was about 99% in favor. But since you enjoy being a voice in the wilderness, Shambles, I'm sure we will hear why the fact that most of those who have shown an opinion disagree with you is irrelevant. (gee- that sentence is worthy of YOU!)