I don't expect kingsDen's case to be brought back just because he started working for the bestchnge campaign, it should be for other things that you may still have doubts about especially when you are suspicious about the two accounts.
Sorry to deviate from your topic but have a look around as several other people also share the same style when posting image. Can we say alt?
Pay attention to their posting style, their activity, their merit history and also how they joined the bounty or signature campaign. You may get another clue. But sorry I can't post image.