i really dont know about trading. there are good things about it and bad things.
Pros:
-possibility for profit
-players can buy furniture for cheaper, and sell furniture for more
-people no longer have to buy the morphs to get into the rooms, as these things can be sold outside for another win win on both sides.
-old hats which are now unavailable will be available again through trade.
-people can sell hats that they bought but don't like instead of just having them and never wearing them
-people who make good customs can sell them for profit
-way to give newer players items
Cons:
-possible scamming of newer players
-guild and spar hats being sold taking away their legitimacy
-wouldnt work well with the current systems of making money.
-when walking around with a cool hat people would constantly ask you to sell it
-tons of people in graal city advertising for trades.
heres what i would do:
replace the archery range in onett with a trade center. players will be encouraged to go there to trade to prevent lag in graal city. when a guild gets a hat, the leader can distribute it to whoever he wishes through trade, however cannot charge gralats for it. this will allow the guild leader to pass out hats to whatever member he thinks deserves it but cannot sell them. people who receive the hat cannot trade it, so hats stay within the group of people who the leader wants to have it. when someone wins a spar hat, they cannot trade it. people with less than 50 hours cannot trade. when you press accept theres an are you sure screen showing you the items to prevent quick swaps, and when someone might be getting scammed, theres a message that pops up in the trade warning them. then a trade request with friends only option as well to prevent request spam.
also there should be a better way to get gralats implemented before this if its ever introduced.