Hi Adam,
As I mentioned, FAA can put limits on how many images could be uploaded per day, week, month or total.
Currently for the paid subscription, they say they allow unlimited uploads, but their strategy for limiting it is to just make it difficult to upload (selecting 1-5 images at a time). As a result, there are users with plenty of time on their hands who have hundreds or thousands of images (often of poor quality) on the site, while others are more discriminating.
Personally, I'll rather see FAA set hard limits on the number of images rather than take the passive approach of limiting it by making it hard to upload and manage images.
Alisha