trust the other person in trade
But that's part of the fun, isn't it?
(...)And finally it would also reduce interactions between players! So it's a good idea but not in this game!
if the safe trade system woud be completed, trading player to player woud be more popular.
But that's part of the fun, isn't it? As a trader you have to work on your reputation and keep track of others.
I know that many players have the same problem as i - if the safe trade system woud be completed, trading player to player woud be more popular. PvP shoud be done in PvP specific places some as PvE and in such manner trades shoud be done in some kind of safe trade places.