There are many cases in which unforeseen bugs or issues exist with platforms that are poorly documented or understood, even by the platform themselves. Such bugs result in unwanted actions that result in a negative experience for the platform users or may end up in catastrophic losses.
Let us take the example of Carson Turner, an NFT collector, who accuses a buyer of exploiting a glitch in OpenSea, and acquiring an NFT that they had no intention of selling.
Issue: If a person transfers an NFT listed for sale on OpenSea out of their wallet and back again, it appears not to be for sale despite still being available to buyers. Some people have mistakenly thought they could use this "hack" to delist NFTs if they change their mind about selling them in order to avoid the 'gas fees' (network usage fees) associated with canceling a sale.
This "glitch" resulted in Turner's Bored Ape #2643 NFT being bought even though he thought it was no longer for sale, and he ended up spending 10 ETH (about $38,000) on getting back ownership of this particular NFT.