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This discussion has been around before and will be around again. All the points made are valid. My recollection was that it would be acceptable for people to use whatever aids they wanted to, but, to be polite, they should state what aids they do use, particularly if asked ... but there is no certainty in a cyber world.
My preference is to play variations where the use of a program is of little value as the software is either non-existant or insufficiently adavanced to be of consequence. I also like to play these variations as it tends to bring the "masters" a little back to the field as they do not have any "books" in either their mind or written to follow.