zero y-mins are usually recommended to show both the absolute values and relative variation at the same time. Based on my own experience, the number of plots t

zero y-mins are usually recommended to show both the absolute values and relative variation at the same time. Based on my own experience, the number of plots that are misleading because they do not start at zero is far greater than that of those that are insufficiently informative because they do start at zero. That alone is not a reason for "banning" non-zero ymins, but it is definitely a good reason to more critically evaluate their use.