I probably shouldn't have used the work hacking, and I apologize.
But I think bonebeach's points are true about the big publishers - they don't make decisions that affect a minority of buyers. I'm not saying that's a good thing, but it is a thing. I can't back it up with numbers, I don't believe there are enough that trim decks for a publisher like Schiffer, for instance, to consider trimmers in their design process.
Small publishers, sure. Anyone who's posting their decks here in Tarot Creation, definitely. That's part of the point of sharing the work in progress, to get feedback (hopefully offered with respect and appreciation)