it's pointless to post your maps on mapdori because if you notice the download counts, hardly anyone downloads most of the user created maps.
on top of that, unless you can read korean you wont understand the posts that they make on your map.
the leagues dont look at the user maps to find new ones for their selection of new maps either.
the purpose of the account is so that you can look at the maps, and download them. its like an exchange of information, and you can find some inspiration or new ideas or methods of execution by looking at their maps, especially since they are created at a much more accelerated rate. or download them to play. stuff like that.