Half of the current 54 approved maps are by mappers with 3-4 each. Since ranked and approved maps are split up on the forums and in-game already, it seems like it would only make sense to do the same thing in profiles as well. And since empty tabs aren't shown anymore, it wouldn't be another useless, empty tab in profiles for those without approved maps. I just thought that it would be a nice touch for those with approved maps to have more recognition profile-wise.