The sentiment regarding Monad ecosystem NFTs is highly negative, with reports that over 40 whitelist (WL) spots for projects like Monadverse, Luckymonkeys, Roarnads, and Molandaks failed to yield significant returns. The user suggests that "trenching" (low-cap token trading) currently offers significantly higher rewards than grinding for NFT whitelists on the Monad network. Other specific NFT projects mentioned as underperforming include Coronads, Monadoons, Jikuna, Ninco, Chewy, Monova, and Stoned mommies.