I've noticed the fake mangadex sites when doing google searches. When I saw them, one of my first thoughts was that they were made by the other advertisement-filled aggregator sites, such as kussmunga, mangokackerlat, and mangorack. <-- deliberately misspelling to not endorse or in any way link to them
The reason I had that thought is because it would make sense if they were the ones making the fake mangadex sites (rather than former batoto users), because mangadex is probably doing a good job of siphoning off their traffic, so they would make fake sites to try to get some of that ad revenue back that they're losing because of users moving to mangadex.
My other thought was that the ad-filled aggregator sites are the a-holes behind the frequent DDoS attacks.
Their actions are all driven by their lust for money. Mangadex is a victim of its own success.
@Matsuura
"About servers images near full capacity: let groups create diferent intro and credit pages, who be placed automatically on each chapter, can free a little bit of space? These images are dupplicate for each chapters."
The scanlation roles can vary on a per chapter basis, so the credits pages will often list different group members. That lack of consistency makes the idea unsuitable. Although some groups do have a consistent lineup, especially if it's a one or two person group.
In any case, the space saved would likely be negligible.