Sorry I don't get your point on this one. How does prohibiting members using TOR and VPN solve the "issues" in the trust system? Since I don't see any direct relation between a member using VPN and his/her right on voting in the trust system or am I just missing something? Besides that I don't even see this as a possible solution considering that the admin has no control towards how the users visit Bitcointalk, users use ad blockers, VPN, and the TOR browser but I don't see theymos prohibiting them since it's their choice to do so.