Obama commented on a Humans of New York photo because he wastes as much time on Facebook as all of us.
That's a nice endorsement for your blog.
Humans of New York is a massively popular photo blog that headed to Iran this summer, and a recent post caught the eye of President Obama. The picture featured a young Iranian boy and his father, along with a story from the proud parent telling how he knew his son would be a humanitarian when the boy gave away a bag of fruit he was asked to hold.
It was so touching that it compelled a fellow proud parent who happens to be the President of the United States to leave a comment.