Thread:DoCheonGong/@comment-39518285-20191218095529/@comment-25122955-20191218111351

There is a small difference between the original "Thank you!" image and the duplicated image. The number 99 has black color, making it easy to notice where 99 is located.

Though, there is a similar image with inverted background color, so I'm not sure it can be considered as duplicated image.