Personally, I don't understand why you guys cant reupload these games to mediafire. The hentai file sharing site(s) you're getting these links from use these filehost companies exclusively because they get a cut of the money every time users have to suffer through their shitty virus ridden pop-up ads, or pay a fee to get less bottlenecked download speeds. DMCA takedowns happen on all file hosting services, the solution is to just reupload it again when that happens. Fortunately, most of these guro games are doujinshi, so the devs don't have as much power to get them taken down as a company with a legal team would.
Someone could also create a big torrent, that'd be extremely convenient and ultimately the best thing to do.