@SFLUFAN @Jose
Is this the most recent one?
Wade, make a copy of the uploads folder (in case something gets screwed up with this) and then run the first reply here on it. Seeing if I could find Jose's icon on the Wayback Machine I noticed this:
http://web.archive.org/web/20171029123018im_/http://www.dayonepatch.com/uploads/monthly_2017_07/IMG_2662_1024x1024.thumb.jpg.303006c3ef9c47ef48e26c7bdafe10b3.jpg
vs this for CayceG (who set his icon once and then never changed it):
http://web.archive.org/web/20160421123440/http://www.dayonepatch.com/uploads/profile/photo-486.png
Although I'm not sure if that's about never changing your icon or using an upload vs import from URL.
Everything after dayonepatch.com/ is the location in the file directory you downloaded where the icon lives...note that there's both thumbs and full sizes.
If people can remember roughly when they uploaded their icon then that'd help you narrow down where to look in the directory where all the subdirectories have been emptied into the top-level one if you then sort it by last modified.