Indeed, the favicon.ico from the "ripoff" site is 32x32 vs the "original" which is 16x16. Further, the larger image shows more detail in the gradients and edges than does the smaller. When I resize the larger to 16x16 pixels, it looks similar but still features slightly different colors than the "original".

Finally, when I resize the "original" 16x16 up to 32x32, it lacks the pixel clarity of the "ripoff". It seems obvious that the "ripoff" icon wasn't made from the "original" as is being claimed.