The efreedom page contains more mentions of your search phrase "remove exif" than the StackOverflow page, with more links to relevant related questions than SO had. It's the more relevant result.
It's also not spam, all the content they've assembled is completely legally used and well presented. You're not brought to a malicious site or tricked into clicking any ads, you get the questions and answers you were looking for.
Google did its job. There's nothing wrong with that search result page or that site.
Excerpt from the Google Webmaster Central Blog[1]:
"There are some penalties that are related to the idea of having the same content as another site—for example, if you're scraping content from other sites and republishing it, or if you republish content without adding any additional value. These tactics are clearly outlined (and discouraged) in our Webmaster Guidelines:"
Why the downvotes? This is the comment that actually answers the question the poster asked! The fact that you disagree with the statement "It's also not spam" doesn't mean you should downvote, especially when the other 90% of the comment is very informative.
If you disagree, comment, don't downvote.
To restate: the searchfreedom page contains more of the stuff that an algorithm can know is important to a good search ranking like more mentions of the search phrase and more relevant outgoing links. It also contains nothing malicious. The stackoverflow page has some stuff that we consider important, like the ability to comment and by being the authoritative source. But Google cannot take this into consideration because it cannot know -- it's just an algorithm.
It's also not spam, all the content they've assembled is completely legally used and well presented. You're not brought to a malicious site or tricked into clicking any ads, you get the questions and answers you were looking for.
Google did its job. There's nothing wrong with that search result page or that site.