Unbelievable how some of you guys are close-minded
He owns just one niche (periscope teens) website, uploads only 1 video to just 5 different tube websites and runs one twitter account. It took him 2 months because everything took times.
Imagine if he had more websites in other niches, added more videos to more sites. Optimized the website and added generated unique content using AI for SEO. All this using VPS for downoading and editing all videos to speed up his work. As BaldBastard said it can be scaled up to increase earnings.
7-10$ sounds fine but 70-100$ much better then he can reinvest money in other ideas or paid ads