For the transactions on the account of @haneun, when my friends/family sell they do it through us, cause they don't want to bother trading their crypto because some tried and didn't do it properly and managed to lose their crypto. So we do transactions for some people we invited in the platform to save them the hassle and time. Some of them don't have the local wallet for crypto as well because they didn't have IDs they can use for the KYC (they were too young when they started Steemit).