Banning one scammer while leaving the others unaffected would not address the problem; rather, it will exacerbate it, and what is the point of the DT system if scammers are banned by the moderators? It renders the DT system ineffective by defeating its entire function. There are still active managers on the forum who have stolen thousands of dollars; what justice is there if you prohibit the ones who wear sigs and let go of the ones who pocket money from charity, bounty, and escrow?
But there is a policy that the admin can take here, for 1xbit participants by not displaying a sig for 1xbit participants, again it's not an acceptable idea with a 100% agree decision, back to basically "not moderated".
That wouldn't solve the problem either; drawing unnecessary attention to 1xbit will only make them famous, just as the OP has done; anyone who disregards the DT feedback on the participants and the manager and becomes a victim shouldn't be our problem; even theymos was against tagging accounts who participated in the Yobit sig campaign a few years ago. (When I find the link, I'll try to quote it.)