I agree but the thing is new users who end up here from for ex. Google searches don't know that is the case so maybe a banner that ONLY SHOWS to unregistered forum viewers that says something like:
"SIGN UP FOR A FREE ACCOUNT IN ORDER TO BE ABLE TO SEE USERS TRUST RATINGS. BE SAFE AND DON'T SEND ANYONE BTC WITHOUT THIS FREE BENEFIT"
That would avoid having to show the trust ratings plus maybe get more registered users.
If we are dealing with the lower end of the intelligence scale, a warning should be of
consequence, not of proper procedure.
How about:
"
DO NOT EXPRESS GULLIBILITY (SUCH AS RELIGION) OR YOU WILL BE TARGETED BY SCAMMERS AND LOSE YOUR COINS"