The winning rate of the contract $BTC must also include the platform's handling fee. The winning rate is 49.9%, and there is 0.1% for the handling fee. As long as you buy in, this handling fee is mandatory. The platform never loses, and the winning rate does not align with traders; long-term gambling will inevitably lead to losses.

If it is leveraged, with 10x leverage, the winning rate must be reduced by 10%. With 100x leverage, your winning rate is only 1%. Those who make money are subject to survivor bias; perhaps there aren't even 1% of people making money with contracts. Making money in contracts is a result of brutal elimination; it could be one out of 100 people or even one out of 1000 people, but do you think that person will be you?