
According to the NFT collector @dingalingts and other users, this warning had the opposite effect and canceling the listing ended up recreating the order. @Dingalingts tweeted a thread urging users to “FIRST transfer your NFT to a different address and cancel the listing/s on the original address BEFORE” canceling them.
1/ WARNING: DO NOT CANCEL YOUR OS LISTINGS AS STATED IN THE EMAIL THAT OPENSEA JUST SENT OUT
Please FIRST transfer your NFT to a different address and cancel the listing/s on the original address BEFORE sending it back
OS just put everyone at even more risk than before
– dingaling (@dingalingts) January 27, 2022
He cites another user @swolfchan.eth who claimed that he lost at least 15 ETH. After canceling a Mutant Ape Yacht Club listing, it was relisted for 6 ETH but someone waiting in the ETH mempool ended up selling the NFT in the same block by front-running the cancellation.
So i got two emails today from @opensea about listings, and lost 15 ETH+ from exactly what their trying to prevent…
I was told to please act urgently to cancel any inactive listings… cancelled a 15 ETH MAYC @BoredApeYC and it triggered a 6 ETH listing… and sold?? pic.twitter.com/1wt21mt9mz
– swolfchan.eth (@swolfchan) January 27, 2022
While some users like @roundcatcrypto commented to @swolfchan.eth “This one’s on you man. Don’t play with company because you were trying to save a couple bucks,” others rallied in support of him and @dingalingts.
Alex Attalah, co-founder of OpenSea, responded to @swolfchan.eth’s thread, tweeting that they “have a team working on it and putting up a countermeasure now.” @swolfchan.eth followed up and asked if he could expect a reimbursement, but received no response.
