From the PTS patch notes:
Crown Store Gifting
Beginning with Update 18, many Crown Store products (with the exception of Houses and Instant Unlocks such as Vampire bites) will be available to gift to other players!
It uses the mail system and not a secure trading interface. When you buy something in the Crown Store you now have two options: buy for yourself or gift for someone. If you chose gift mail is sent to the recipient with a link to claim the gift.
This is not all that unusual in MMOs these days and many let you just put cash shops items for sale in auction houses. It would be extremely naive to think that this won't be used for crown item for gold exchanges in addition to it's titular purpose, gifting.
But they're doing it in a way that is risky as hell since someone needs to go first: you give them the gold first or they gift you the item first. Scams galore will happen not unlike what used to be fairly common with gold for vampire or WW bite exchanges, but IMO this will be much more common since it's an obvious way to buy gold with a couple of intermediary steps... or maybe the high risk won't make it all that common?
What do you guys think?