Char, I would also be upset to see any of my images which are posted here used w/o permission for someone else's financial gain. It is YOUR intellectual property! Honestly, by the time someone uses it on the LA, the damage is done.
This has happened to me before a number of times, mostly when people would write and tell me someone was using what they thought was my pic, as who has time to patrol the LA? I have personally contacted people and asked them to remove them or credit me as photographer and not do use again w/0 permission. Most times they complied, only had to go to Mike once. Still, it would not be good to find that people are coming to this site and randomly using images marked with all rights reserved.