According to one of the sites in the article above, although one doesn't have to, it is a good thing to name the persons who created and/or the sites one finds pictures to use.
Otherwise, the assumption is that the image is part of the blog. Could this be why the posts are being flagged? Or is being done despite attribution?
"Hi there! I am a bot that attempts to reverse image search photo posts. I have found the following matches: 1 2 3 4 5 6 7
If your post isn't original content, you might be interested to read the @steemcleaners Plagiarism Guide."
This is the reasoning of the bot. Bots do not think. If they think you have to be punished, they just do it.
Noted. And thank you.