Just to point out here: No one 'MADE' you trust him, you decided to trust him. Mods and other staff do not have to give you anything back because you made a mistake. Harsh as that is, it is part of the game. It is also hard to tell who owned what and it would be easy to lie. So Crit, only give back what is within reason (for example, if he is a Beginner, then its unlikely he'll have more the top notch stuff)
Yer understandable, Havent been able to contact Blocksman but I did find Beastman in a AFK Pool, forgot to check is inventory before kicking so im not sure about the Theft thing so far