I am very poor English, so can not explain in English well...

My personal idea(My idea may be extreme).
If there is no BAT and MOD which I need, it will make by myself. Even if a part of BAT of APTX is not found, there is no objection on my part.
Furthermore, I think that he erased the site in order to escape bondage. So, I think that only those who possess his BAT and MOD should use. But I regret that his wonderful BAT can not be obtained.