Hey guys!
I will show the screenshots with the scammer including his Bitcoin Address to a bitcointalk.org moderator
While I'm not a moderator, I reached out to yumei and asked, whether he wants to show me the transaction hash in private. He then send me an archive link of Slack, which I couldn't check out, as well as a transaction hash. The transaction confirmed on
2016-06-20 and it shows the movement of 10 BTC.
I asked yumei to sign a message with the key used to sign the transaction input, and I asked when the alleged trade took place, because the conversation he posted showed a link to a
release on GitHub, which was released only four days ago. I'm still waiting for a response.
edit: for some reason the timestamp on blockchain.info now shows 2016-08-29. I haven't checked it with Bitcoin Core earlier..