i responded to his WTB thread here:
https://forums.sourceop.com/threads/...kpack-keys-ref

steamrep report:
http://forums.steamrep.com/threads/r...6/#post-370699
i had 30 keys to sell in exchange for paypal. i went first.
after trade was accepted, there was no further response from him.
he did not disconnect, he remained online, but he was completely unresponsive.​
same screenshots from steamrep report:
inventory history in web browser.png
paypal activity.png
steam chat.png