First of all I am from a Mennonite community. And it's probably true that they don't like to be mapped, but so do lots of people who's houses you map. I recently started mapping the villages as place=village instead of boundaries. I'm just used to mapping all villages as boundaries in Belize where I do most of my mapping. And I wouldn't tag them as place=farm, because to me a place=farm is a single farm with a name, like Peters Farm.