I doubt it will stop, and I'm sure there won't be a trading system anytime soon let alone at all. There's a warning that tells you to be careful about dropping your items. You either trade with people you trust 100% or not at all. But even people you do trust can do the same and scam you. It's happened to people I know and they've even quit over silly items.
Just don't trade at all and you can avoid this.