CannabisBNBminer is a complex mining platform where users deposit BNB to earn daily returns based on various factors. Similar projects like MineBNB offer 'hold & earn' BNB rewards and mobile application-based task rewards. CEO-MINER focuses on high-frequency BNB mining, while Air CNB presale is a cannabis promotion project with features like NFT staking and a marketplace. This platform appears to be focused on generating passive BNB income through a mining mechanism, potentially with added utility features.