Open-source engine? Open-source clone engine? It's the same thing in my mind. And how can something be a "total new engine", as you worded it, when it is heavily based on another engine? It's the difference between tracing a drawing and drawing something yourself. The traced drawing is the same as the original, with slight differences due to being done with a different hand.
I don't recall falling back to copyright stuff. I just said that Pixel obviously didn't want his game made open source or he would have done it, hence why I don't like the project. Am I not allowed to have a personal opinion without someone assuming that I am going to act upon it as a moderator. You all know me better than that.