I managed to build up a trusting of a green 8 on the left side of the "/" symbol, and a +1 (different shade of green) on the right side of the "/". Just checked it right now and its back to 0 and 0. Does trust rest or what may have been the cause?
probably one user who gave you a positive feedback is removed from DT so his feedback left to you is now on untrusted feedback and wont reflect your trust ratings now