i dont think he ever had criminal intent. but i do believe he is disillusioned with what it means to give credit to people who worked on a project, especially if it is work with their design/artist/creative identity all over the project.
Last month a steemit user shared a border to help format posts, and when I used that border she created in my post, I credited it to her. And that was a small thing. The Sugar Steem project used my entire design in a post and refused to even mention my name. That is why it is a problem. If it happened to anyone, it should be a problem. Giving credit takes no effort, and is this case is nothing more than a "thank you for your hard work that I am using and building off of".
You reskinned a wireframe that looks identical. Lol are you joking
homepage hardly looks identical. profile page, yes. the homepage was a much more transformational design