On May 23, GameStop CEO Ryan Cohen challenged eBay's financial efficiency.
Cohen criticized eBay's $2.4 billion marketing budget.
In a post on X, Cohen cited a seller's complaint thread to argue that eBay should manage basic functions like user logins.
He also highlighted an eBay job posting for a Senior Manager of Marketing Effectiveness, noting the role's responsibility is to determine where the money is spent.
The dispute follows eBay's rejection of an unsolicited $56 billion acquisition proposal from GameStop.
eBay's board deemed the takeover bid not credible.
Following the public bid, eBay permanently suspended Cohen's personal seller account.
eBay stated his activity posed a risk to its community.