Skimming involves excess balances in the bentobox, not in the contract itself. This comment will lead to clients incorrectly passing tokens to the pair, rather than the bentobox. In addition, overall, there should be more comments devited to the interactions with the bentobox
https://github.com/code-423n4/2022-04-abranft/blob/5cd4edc3298c05748e952f8a8c93e42f930a78c2/contracts/NFTPair.sol#L320
https://github.com/code-423n4/2022-04-abranft/blob/5cd4edc3298c05748e952f8a8c93e42f930a78c2/contracts/NFTPairWithOracle.sol#L355
