It will stop shitposter from ranking up which is a great thing however it doesnt do anything for members who provide quality post and are not getting any merit because other users may be upset they are not getting any which just trickles down to everyone staying where they are.  This only benefits the top who are already ranked up and this doesnt matter to them.  I like the idea in general but this could drive people who do contribute away if the contribute but have no hope of ever realistically ranking up because they are not getting merit.