That simply is the desire to facilitate your sports betting and online gambling activities with Bitcoin and other crypto money instead of fiat currencies such as USD, EUR or GBP. This way bettors stay in the crypto universe even when they bet or gamble. This gives them the advantage of not needing to convert to fiat currencies and pay any commissions to crypto exchanges. They can also stay anonymous with the privacy of crypto even they bet or gamble. At the Bitcoin gambling sites, you can use BTC as your account currency. This will give you the advantage of using BTC at your betting stakes and take your potential winnings in BTCs as well.