I've never done this, intentionally at least. However, you can't argue with the success of those that are doing it routinely and on purpose.
Something in me wants to think that I should disturb the ecosystem present in the substrate. However, another part of my says that the detritus that builds up in the planted aquarium substrate doesn't get dealt with the way it does in nature. We need to manually clean it after a while (besides the top cleaning we do with water changes).