アライさんマンション■肉食系百合
Source: https://twitter.com/i/web/status/1226862757653336064

装置を動かす方法は分かったが、任意の操作方法は分からず、全ての扉が本人の完全なコピーを吐き出す状態は、あまりに危険すぎた。扉は１つを残して全て溶接された。問題は解決されたが、こんなものを使うのは１体の「本人」を作る為に大量の「本人」が箱の中で圧死しても構わないという奴だけだろう。
Source: https://twitter.com/abubu_newnanka/status/1226870771567345670

複製階は「他は異常な物を出力したから封印した」も悪くないとは思うが、個人的には

「異常なものを出力したから封印したんです」

より

「正常なものが１００体くらい出力されてしまうから不要な９９体が速やかに死ぬように封印したんです」

の方が怪異と人間で狂気を分担してて怖いと思うので。
Source: https://twitter.com/abubu_newnanka/status/1240125119273500672

Raccoon-san Mansion■Carnivorous Yuri

Source: https://twitter.com/i/web/status/1226862757653336064

The method of operating the device was known, but a practical use for it was not known. A situation where a perfect copy of yourself gets spit out from every door was too dangerous. One door was left while the others were welded shut. The problem was solved but, the only type of person who would use this is one who didn't mind crushing a large number of themselves to death in order to create a single copy.
Source: https://twitter.com/abubu_newnanka/status/1226870771567345670

It's not bad to think of the Duplication Floor as "the others output abnormal things so they were sealed", but for me personally

"It outputs abnormal things so it was sealed"

Rather than that

"It outputs about 100 normal things, but the other 99 were unnecessary so they were sealed to give them a quick death"

is a more scary idea that separates the madness between monsters and humans.
Source: https://twitter.com/abubu_newnanka/status/1240125119273500672