What he does is first puts up trade with the buyer and shows the shue, he then closes trade after the buyer see's the shue and asks for more stuff in trade. When he sets up the trade again, instead of placing the lvl 96 shue...he puts a smaller one but lvl 30+ so we wouldnt realise the difference coz the shue's are the same size in trade.
The buyer taking for granted its the same shue, accepts trade and gets scammed x_x
It's not happened to me but my friends suffered a huge penalty cause of a small mistake of not checking again. For the people who didnt understand what i said, i sent a shout myself that i was lookin for a lvl 95+ shue so this guy would pm me. I took screenshots of each step of his so that i could post it here to make it clear for you guys.
I first put up my own pants and told him i would trade that for the shue

He puts up the shue and presses trade but doesnt confirm...instead he immediately cancels it after he's sure u've got a nice look at the shue

After canceling it he asked me for more items

when he puts up trade again he doesnt put up the 96 lvl shue i asked for, instead he puts up this lvl 41 shue....hoping i wouldnt notice. And me since i knew what he was upto i didnt trade, this is where many people make the mistake....they do not re-check the trade and end up losing 100m worth of stuff in exchange of a noob shue like this.

I dont think the guides can help you get back the items, but I'm just posting this so nobody else gets scammed by him. Be careful when you are trading people and make sure you re-check the items. I'm sure you guys must be thinking that you need to be really stupid to fall for this trick, but trust me guys its a very common mistake and could happen to you easily! I dont want more of my friends losing all their items to people like him. Well thats all there is from my side, take care guys.
~X~