I dunno. Maybe. When I did these pulls, it was 6am Japanese time and in the afternoon for me. I have never really rolled around midnight for either time zone. So that kills the midnight theory for me. As for rolling seeds until I get a silver, that didn't work either. In fact, I rolled so many times but never got a silver and did the normal roll for the heck of it and got a rainbow. The ID thing could be true but I have another hypothesis that I've been wondering. I can't remember how many times exactly, but I have purchased DMM points to do FKG 5000DMM deals every now and then. Could it be plausible that they recognize you by secretly increasing your player ID's odds in thanks for being a supportive, paying player?
Sorry guys. I'm likely in the same boat as Kurenai will be. Red Ginger is an amazing beauty that has gone on far too long without the just recognition she deserves. While I like Sasaquana as another cute, dark skinned girl... Red Ginger is just TOO OPPAI!!! And the Oppai will always win in the end my friends.