For minecraft there is vanilla and custom maps, due to the large number of custom maps it is hard for us to have our leaderboards on this site. Could there be an ability to make sub sections for games. 
For Example

Minecraft
  -Vanilla
    ---Category
  -Maps
    ---Type of map
      -----Map
        -------Category
      -----Map
      -----Map
    ---Type of map
      -----Map
        ------Category
      -----Map
      -----Map
    ---Type of map
      -----Map
        ------Category
      -----Map
      -----Map

I've wanted to generalize the category organization as well.  It's a pretty large change though.

I'm not sure how sub-sections would work out.  I definitely want at least the ability to create an unspecified amount of custom named "Full game Leaderboard" sections and "Level Leaderboards" sections

Generalizing subsections on top of that is probably desirable, but quite difficult.