I guess nobody wants to chime in so I will. I can understand some pardons if it is shown justice was not served or if it was handed out with impunity and without equal treatment. His latest pardons
do not meet those standards, in my opinion. Only one met those standards, and frankly I am shocked he pardoned Jack Johnson after so many passed despite the urging of historians.
Can the system be trusted? Nope, not currently with those in control using it as a personal system of tribute. Other presidents have made similar pardons so the system has been broken for a very long time. I do not trust it.
Can he pardon himself? It is unclear. It is up to the House, Senate, DOJ, and courts to act if he tries it. I have absolutely no faith what so ever they will try to stop him. None. I lost all faith in our government - a strong statement from a historian and american studies scholar. I remind myself that every fifty years or so America elects a madman drunk with power, but we bounce back. This time I am not so sure. Just my opinion, for what it is worth.