They are quite smart in attracting many users, and contests are one way to attract the attention of many people so it can be said that it is a promotion in a different way that not many other casinos do.
It's not strange when they get a lot of trust from a lot of users.
Though, they didn't return back their past promotions (guess the total wager and guess the slot) the art contest is still there and consistent. The prizes are indeed generous and that what makes them stand out to other casinos, for conducting an art contest exclusive for the forum users.
If I look at the work of users who participate in the contest, I am often amazed by their work, because of course the work they make must have a concept and not just make it. And I really appreciate that.