South Korean crypto influencer Definalist has accused Upbit of front-running during the recent listings of WIF and VVV tokens. According to Definalist, several addresses linked to Upbit's hot wallet purchased WIF before its official listing and sold shortly after, with similar patterns observed for VVV. Additionally, Definalist suggested that Upbit has been testing STABLE tokens intensively, with suspicious buying activity noted in wallets potentially involved in pump-and-dump schemes.