Whoever this person was, he knew about the forum very well. He must know a lot of us and how we behave. So he knew where were the holes.
I started to believe this, in the past I did not think that he was a scam because the account was created before March 15 (the date of CM seizure), he has a technical background, in the first there was fast mode and note mode where it was not easy to scam users with fast mode and if scam with note mode they have 40k as a guarantee, and then talk about the fact that the service is decentralized.
There were indications that they did not have a large budget, such as spending on campaign signatures was less over time.
This reminds me of a mixing service that had money in bitcointalk escrow and suddenly pulled out before exit scam.
6 weeks is not huge amount of money for most people but I bet it still hurts to get screwed like this.
This is worse than having your money stuck in exchange or gambling website.
If this is true, then I think that 12% made them promote the service almost for free, as I think that most of the participants did not withdraw their currencies, but on the contrary, some may be greedy to deposit more.