Middle Men

cuz i dont play Cs:s, and warrock not often!
i even give accounts when people are trading..

A MM is a person that helps with trades so people don't end up getting scammed, say you are both trading each other accounts, you would both give the MM the details of the accounts, the MM would then confirm if the account's details are valid or not, if the details are valid they would then give you both the accounts you traded for, this prevents people getting scammed.