I've found many photos with lower quality than mine in the database. Still, my photos were rejected. Why?!
We have increased our quality rejection level many times since we started out. We accepted almost any photo that was sent to us a few years ago and has since then increased our standard and now only accept photos with high quality. This means that there might be photos in the database that was added some time ago that would not have passed the screening process today. We try to delete any low quality shots that we find but it's a lot of photos and I'm sure there are still some in there.
We also have lower rejection levels for very unusual photos as well as older ones.
Finally, have you checked the color depth and resolution of your monitor lately? If you do not use true color (32bit) and at least 1024x768 pixels resolution you won't see the photos as they are meant to be seen. You will not be able to see any difference between a badly scanned photo and a perfectly scanned shot with high color and DPI settings. This is of critical importance. If you cannot see the difference you will probably not use the best settings on your scanner and your photos will not be looking their best. Ask your local computer guru how to change the setting on your computer.
Hopes this clarifies it a bit for you.