Forgot to add I do think it is unfair for users to be given negative trust for participating in a Ponzi thread - a neutral would be better - as the punishment 
for participating and for actually carrying out the Ponzi scam are the same.
You were promoting the ponzi directly in your Personal text, and posting outside the Investors based games. Which is why the neg for participating and for actually carrying out the Ponzi scam are the same.Also, good thing you finally are managing your trust list but others can still see the neg from DT as trusted, as most users have DT in their trust ist by default