If your inventory is private -> no Trade for you.
If you write some skinBS on my profile -> no Trade for you.
If your profile looks sketchy (no games/friends/hours) -> no Trade for you.
If you name is SomethingAdmin (I know you are not) -> no Trade for you.
If you need a +1 for a game and i don't know you? -> tough luck. i know about .scr.

I'm not an Idiot People. And even if all of the above check out: I double and Triple Check each Tradeoffer. And if you are not a professional gamer, no one cares about your setup.