This means that in exchange for items a player gifts the other items from the item mall. However, before doing any trades, please take a screenshot of your trade agreement showing what is being traded for what. This way you can protect yourself incase someone tries to scam you.
You do not actually trade / pass CC; you purchase, from ItemMall (IM), specific items in-trade for in-game gold / gear, and you 'Gift' it to the (EXACT) alt name & server---when you choose an item from the ItemMall, a 'Gift' option / button is displayed, where you will have to enter the person's (EXACT) name and server.. There is a HUGE level of trust, thus limit trades to alt names which are common/familiar! Example: you want to buy gear in-game that is 12-billion (ie: OP1 deco); the other party will tell you what they want (90-day prem etc). These trades are risky, so I recommend not doing with those whom are not displaying titles (band, M&D, low-level vagabonds etc). Also, as suggested, take screen shots GALORE !
all true keep in mind some item in the mall can be bought and traded but some cannot be. so some things can be bought and traded player to player or like they said will be done by gifting cause cannot be traded player to player. all true screen shot and trust goes a long way! have fun and good luck !