After OpenSea begins reimbursing users who lost money due to listings they didn't realize were still available, user "opensee_​will_​refund_​ask_​them" and others continue to exploit the widespread problem

An OpenSea profile named "opensee_will_refund_ask_them"OpenSea account exploiting the issue (attribution)
OpenSea began reimbursing users who lost money earlier this month through what some have described as a bug with the platform, but which others argue is just a misunderstanding on the users' end. People were able to buy NFTs that had previously been listed at much lower prices, even though those listings didn't appear active to the seller anymore, if the seller had failed to properly remove the listing. The buyers were then able to flip the NFTs for massive profits, and OpenSea ended up reimbursing users to the tune of about $1.8 million. However, there are still many NFTs vulnerable to this, and people taking advantage of it, including one user who named their account "opensee_​will_​refund_​ask_​them".