I'm not quite sure how this would be implemted but say a map has a quest diffulculty and a modder only finds problems with a guest diff. The mapper would not know to award kudos because it's not their map and they don't know if it really was helpful. But if the guest mapper did find it useful they could award the kudos themselves. And maybe this could also work with collab maps for when a modder only mods a certain section of a map.