It's not a margin trading platform. I think perhaps the OP doesn't communicate very clearly what the dapp actually is, but to re-state what I said in an above post, ExcitePrice isn't an exchange. There's no orderbook or actual exchange of assets. Users make a bet on the price of assets. I think can be reasonably considered a gambling dapp even while not being cards, dice, etc.

edit: I edited the OP a bit to more precisely define the platform, without entirely changing the OP