It is the dream of most gamblers here, to somehow have a safe haven for their holdings. With the common volatility of decentralized cryptocurrencies, many find it difficult to have a certain and stable amount of their winnings. They might win a hundred dollars now, but the time they need it, it could be only 90.

Meanwhile, some would still find having stable coins unnecessary and unrealiable, due to the fact that having stable coins could also be risky (even riskier) as you couldn't expect that later it could cost half of its price today depending on the big time holders of that certain coin (with USDT, once the USDs price suddenly go down, then their holdings in USDT would be pretty off as well)

Both have pros and cons. It would only depend on how and when would the holder withdraw his holdings.