Why not create a trust feedback thread on the reputation board? Since you literally said that you won't be opening any offers here on the forum. But then, the usefulness of the trustfeedback thread, is for people who would be interested in trading with you, to check out your offers over there on those p2p platforms.. I've seen some past similar trust feedback threads on reputation board, like this one @My Reputation/trust thread though most of them are trades done on the forum, but since you are still a member I don't think it's going to matter much.  Then from time to time, you keep updating it with your lastest feedback and also those who are interested would drop some on the thread as well