Are you saying not one person would notice its presence and not get its memory erased? That it consistently erases everyone's memories every six months like clockwork for three days only? Why would it do any of these things anyways? It seems to be a pokemon that interacts with people often if it has no qualms about coming here without notice.

[ She's intentionally ignoring the elephant in the room. That wasn't her finest moment, but, if she doesn't think about it, it won't exist. ]