Comment by tecoholic
I don’t understand why this is sleazy TBH. It’s CC-BY-SA. If attribution isn’t provided it’s a valid case. I once uploaded a map of my state with all the districts in labels in English and my language Tamil to commons under CC-BY-SA. It was used left right and centre, from publications, map sellers to the point I can see them hanging in offices. It’s always pained me, nothing could be done about it. Now I didn’t want money, would have liked the recognition, but would have settled for just seeing the CC-BY-SA logo on it at the least.
CC-BY-SA-4.0 fixes the specific technique of spreading one's work through the commons and then charging for inadequate attribution by allowing for a 30 day cure period on notification. This anti-copyleft-troll clause should likely permit your use-case.