TBH I don't know about that case. But a dice site is not an obvious scam until proved otherwise. Did he promote it even after it was an obvious a proven scam? I see he updated a previous positive trust to neutral after the scam was found.

On the other hand anything that "guarantees" always doubling your coins is an obvious scam.

To make it short: promoting a known/obvious scam deserves negative trust. Therefore I'm adding negative trust to you now. If you can prove without any doubts shorena was promoting that dice site after the scam was proved above reasonable doubt then I'll add negative trust to him too. Sounds fair?