Iv'e seen few players reports about trade steal they say they use trade and next min their items are gone sounds funny idk what u guyes think about this?

Well, "never say never". Players do get scammed, but it's typically through drop trading or being naive enough to believe a smooth talker a la "you give me your weapon first and I'll give you mine later off my alt". I've never heard of a legitimate trade window bug/exploit, but that doesn't mean it's not possible.

Also, some players don't know about the trade stash button (when I give presents or prizes to newbies - usually level 90+ rainbows). They often send me tells after the fact saying the trade didn't go through. I then point out their shiny new trade stash button and all is well in the world.