I have a couple of questions I want to ask on my own work. This post, I think is good. I have proper attribution, though not Chicago manual style to the creator, and it's just a link. I figure if they have a problem, they can block it.

I think this is fair use, too. I'm confident that a paintover with proper source attribution would be kosher. Just like making a map based on GTOPO30 data. The map itself might be objectionable however and I will remove it on request.

I just want to be clear so that I don't cause annoyance.