A user on X platform, @BTW0205, claimed that there is a malicious behavior where buyers initiate transactions with extremely low Gas to purchase inscriptions, causing them to be unable to trade in the short term. They would then accelerate the transaction after the price rises, and cancel the transaction after it falls.

In response, the founder of SlowMist, Yu Xian, stated that due to the PSBT signature mechanism used by the trading platform, it is indeed possible to maliciously occupy the transaction for a certain period of time. RBF can be used to accelerate successful transactions, but it will not accelerate transaction cancellations (the cancellation is actually the low-fee transaction before it was successful, but theoretically, there will eventually be a successful transaction according to the PSBT agreed upon by the seller).