they are changing this.

for the worse.

from the Faq thread:

Update - Resizing of images issue -  The programmers are going to run a script that will be retroactive and for future images that our software will resize the image during upload. The full image will be the same size, just no way around this because of the tables but they will be clear good quality images and of course you will still be able to click the zoom to see it at full size. But the good news it they will run the script (that may take a day or two) going back through all images to fix and all going forward.