http://support.na.square-enix.com/ru...&tag=freetrial

Users will not be able to use "shout", "yell" or "tell" in-game chat options during the Free Trial.
Users will not have access to the in-game market board during the Free Trial.
Users will not be able to trade items with other players during the Free Trial.

They already put those limitations on the free trial. This has to be repeated every time someone makes an RMT thread, because people dont actually look it up before saying things.