You really do have to look at the amount of comments given for a particular image. I know that none of my images will ever generate the views that many people get because a lot of pictures are selling sex instead of an image.

As for macro shots, I believe that most of my thumbnail crops are based on the resized image that I post, but what else do you zoom in on if you cannot show the bug at a size that's gonna dissapoint people when they view the image? Looking back over my works, I don't believe I have the same problem that you guys are mentioning, but that's just my guess.

ALL of my full-size images taken with my 10D are original crop (except "wierd" since it was a random shot just cuz) and I will not stray from that when posting to the web because cropping is supposed to be taken care of while taking the picture and is part of the entire art of photography. I save the cropping for the thumnails almost to make another piece of art. Again, views don't matter if you only have a couple quick comments.