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.
So the victims of the scam are punished twice, sometimes a third time as there has been occasions where a sig campaign has kicked them out for the unjust punishment of receiving a neg feedback.
Maybe the heavy handed self appointed Ponzi police should think a little of the ramifications of their actions.

Which part of, "I will remove the negative rating if they delete their participation posts" is complicated?
Yesterday alone I tagged and then subsequently removed about a dozen ratings from people who complied. So, no, it isn't heavy-handed it is fair and effective.