Uhh, he's taking other people's photos for his own gain. He even thinks crediting them makes it okay, when in fact it works against him by showing that he knows he is stealing.

Forget about all the other morally grey things about this, this is blatant copyright infringement. There truly is no such thing as a free lunch, the content is where 100% of the work and money is, and its completely stolen.

I re-read his article to see if he took steps to work around this. My god, he even seems proud that he directly scrapes from other people's instagram. I would go as far as to report this guy.