It's not about reputation, it's about how often people go there. I have never once seen someone over level 15-16 go underwater except for the red badge thing, nobody goes there unless they have any business. Maybe if the admins add an extension place underwater with level 20-21 mobs, then your proposition might have some credibility. However for now, it doesn't.
By the way I white-knighted you Innos, you have to let me smash now.