The Beatmap Graveyard
Threads on the Completed Beatmaps and Beatmap Help forums that do not receive replies within 4 weeks since their last post are automatically moved to the Beatmap Graveyard subforum to prevent the other beatmap subforums from getting cluttered. To prevent this from happening, you can use the Beatmap Submission System to reupload your beatmap and bump its thread in the process. Please use this feature once every few days and only if you have followed all moderator suggestions so far.
Even if your beatmap gets sent to the graveyard, you can easily recover it from there if you wish to work on it again. Simply ask a moderator to move it for you.
FAQ 발췌!
그냥 업데이트 안하고 4주간 리플 안달리면 되는듯...