BLURP Portal allows users to earn passive income in USDT simply by holding $BLURP. The smart contract automatically distributes USDT rewards to all holders, providing a consistent income stream based on their holdings. Similar projects like BUSD PAY offer passive earnings in stablecoins and utilize features such as P2Earn games, staking pools, and escrow services. BLURP aims to provide a similar experience with immediate USDT distribution.