I don't know why some get all worked up when somebody comes up with an unusual design/technique. Then try to one-up by doing the same thing and claim they did it first or that somebody has already done it and accuse you that you're a copycat.
First of all, these are common bricks that can be put together in so many different ways that it's bound to happen that different people can come up with a design/technique that are similar.
Second, the end result might be the same but the solution could be different.
Third, I lay claim that anybody who does this design/technique is a copycat!