There are many people on this site that makes images to upload and there are also a lot of people that don't make images but are still members. Shouldn't the people that upload images have a certain symbol representing them like the Caedes Cadre and Moderators?
No. We're too special. ;-)
I don't remember if caedes was planning to implement something like this in the new site changes, but it might be nice to bring attention to regular contributors in the author list.
I don't think flashing lights would work, a simple thing like how the moderators and cadre have but different. Something on the keyboard or something that can easily be made to be placed in front of usernames.