Sometimes it's important to take a stand.. you just have to pick your fights. I don't see anything wrong with challenging them on the facts but ponzi is fraud so, need to be especially careful. So long as the principal representation from both sides stick to the facts, it could even be useful to hammer out what is good practice and dismiss other random offering that might try the same. In the event it does become a slanging match, then we need to resist moving away from the fact. It's also important not to humiliate the opponent and when in error it's important to be gracious in defeat. I think it's a good post.