This looks like the start of the end of eroge sharing in japan.
According to this page
http://www.sofurin.org/htm/copyright/77.htm
It seems that one of the main sharer of eroge known as 喫茶東洋 on share, who was probably uploading about 50-70 % of the games recently, was just arrested at the end of april.
That is probably going to stop the few other japanese uploaders that were still in activity.
Since most of the games being shared on animesharing were first downloaded from those uploaders, we might see a sudden stop in game sharing here as well until some non japanese actually buy games and share them.
According to this page
http://www.sofurin.org/htm/copyright/77.htm
It seems that one of the main sharer of eroge known as 喫茶東洋 on share, who was probably uploading about 50-70 % of the games recently, was just arrested at the end of april.
That is probably going to stop the few other japanese uploaders that were still in activity.
Since most of the games being shared on animesharing were first downloaded from those uploaders, we might see a sudden stop in game sharing here as well until some non japanese actually buy games and share them.