agreed, KO is something "ripped" from an existing original design. be it low or high quality. like the 3rd party trailer for MP01.
it can't be a KO if it's using an original design and not even marketed/labelled as "Transformers". how can you knockoff something that doesn't exist? it may hold a resemblance, but it's still an original design. like six robots that resembles the constructicons and can merge into something that resemble devastator, but has a totally different transformation and design scheme.