I had 20/20 golden chests on all but my first character, who was missing 2 and it said that I hadn't completed the MoT. This was the same for several of my friends too. As for character deletion, I agree. However I ran 3 warlocks for VoG in vanilla, deleted a character when HoW vault space was increased to roll a Titan. Then when the TTK vault increase happened I was able to stow my items on my 3rd and rolled a Hunter.