BitcoinBetting.website is not really a 0% edge game. They take 0.0002 btc on each transaction, that's how they make money. In fact, if you bet less than 0.02 btc, they take you more than 1%
Nopes buddy. This has remotely anything to do with how they make money. Following is clearly stated in the FAQ.
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7. Why is 0.0002 BTC missing from the bet amount I sent?
A transaction processing fee of 0.0002 BTC is deducted from each bet.
It is an on-chain game and 0.0002 BTC is used in mining fee.