Don't starve together for?

no Borderlands 1 (Game of the Year)

Because every single trader you've dealt with has only traded with you?

Why won’t Steam Support provide information on why they trade ban or locked an account?
By limiting the provided data, Steam Support prevents malicious users from learning how to avoid getting caught in the future. Steam Support relies on several data points to arrive at a decision to ban or lock an account. Users intent on committing malicious activity, most often done to other users, are constantly trying to gain this data to use in future scams, fraud and hijackings.

i will do the same as valve, and wont till you

Already took a look, if its tradeable gift and he goes 1st the risk is pretty minimum.
Unless he wants to be tagged by steamrep that is xD