Live Sphagnum moss for mature orchids?

[MRWPsyD]

I'm interested to hear what people's experience with live sphagnum moss in mature orchids has been. I have been reading about some benefits, but I assume there is a reason this is not more common. My concerns are primarily that fertilizer may kill it or that it would need to be more wet than the orchid wants. I have a Zygonisia Murasakikomachi X Zygo. Debbie de Mello 'Honolulu Baby' that I'm considering it for, as seller pointed out it's Aganisia heritage prefers to be consistently moist. Any thoughts or suggestions are welcome!