I don't see why anyone would want to use peat moss to be honest. In the wild, these things grow in what is basically beach sand with no nutrients, which is why they've evolved the ability to augment their nutritional needs. They're originally from coastal swamps in the Carolinas and there's a possibly introduced population in northern Florida. The best bet would be to try to match it's natural condition as closely as possible.
The swamps where I grew up on the FL/GA line had all sorts of carnivorous plants, though I never found any VFTs. We had pitchers, sundews and butterworts. All of them grew in the nasty white sand we had down there. It was basically wet sugar sand with very little organic material. They normally grew in acidic soil by the pine trees and red oaks as well.
I guess what I'm driving at is that in my experience, I don't really see a reason to put them into peat moss. It may or may not work, but for ideal growth of the plants I don't see an advantage to it.