Today I has an image rejected as being a similar image.  The image was not similar to my own in subject matter, composition or light submitted at same time or ever. Checked that they have too.  It is not similar to images by others with agency and the lighting on mine is nicer than most there. 

Annoyed. Oh, fine... that agency loses the image and others have it for sale instead.  Move on and work on other images.  What X rejects will sell on Y.   Typically I just move on but this time I knew I could actually check.

Are there any agencies that penalize you for resubmitting?  Normally I do not bother.. but this time might be worth it.