What I find interesting is the choice to threatening them rather than just sending a DMCA takedown to Tumblr. Then again, the people (bots?) sending these emails may have no idea where it's hosted.
I don't think the courts recognize such agreements as valid, as the demise of Righthaven showed.
For example, this is the first listing I clicked on in Zillow. Immediately found the same listing on Redfin with the same photo watermarked by a 3rd party.
https://www.zillow.com/homedetails/240-Centre-St-New-York-NY...
https://www.redfin.com/NY/New-York/240-Centre-St-10013/home/...
I'm sure it's on various other MLS sites with photos as well. The real copyright holder is most likely the listing agent or possibly even the photographer, and chances are they have no desire to send C&D notices because "any publicity is good publicity."
https://en.wikipedia.org/wiki/Strategic_lawsuit_against_publ...
USA, land of the free. Home of Freedom of Speech.
Zillow sent this lady a C&D letter where TOS, not copyright, was the primary factor.
If there is no colorable argument against fair use, then it would presumably be thrown out at summary judgment on a motion by the defendant.
But fair use analysis is rarely cut-and-dried, unless the fact pattern and context very closely mirrors something that has been previously litigated, and typically involves disputed questions of fact regarding impact, which would call for a trial.
(I ask as someones who's flickr photos ended up on the front page of a local paper... and was mildly annoyed, but it was promoting an event I work on.. had they just asked....)
News organizations and documentaries pay lots of money to clear and use old stock news photos.
I do enjoy the critique though...
The photos are annotated for the article. That's not a straight rip, definitely some transformation going on.
That argument does not apply to your photo, or stock photos from an archive. The distinction matters in the eyes of the law.