The site doesn't bother how it looks - its players are mostly persons known to the management in real life, site doesn't bother to gather reputation or fancy ads because it targets real connection with the high stakes player directly. It is rather a private club you are joining through real life reference than an online gambling site.
Sorry but this doesn't add up to me
Anyone who cares about their money would care about the platform's reputation where their money sits. In marketing, that's also one way to attract users -- by building reputation. Expecting the high stakes players to flock on your platform when there is no effort to build reputation on your part is a bit too much... one would need some mind bending skillz lol.