I never had chapped or flaky lips, even when not applying anything for a while. They were dry and most importantly felt dry, but they where never cracked, chapped or flaky.
And it's not like I would have relatively normals lip skin if I kept on using chapstick/vaseline/... now. When the crusts are gone, I don't have normal lip skin. It's thin, sensitive, red, irritated, a little swollen. Daniel seems to be able to have kind of "normal" lips when removing his build up. So we might have different conditions.