These guys tend to come out of the woodwork when the focus of the article is of a certain gender, if you catch my drift.
This style of marketing is becoming very popular. The young, disadvantaged, novice, whatever does something extraordinary through sheer brilliance and dedication [1][2][3] and when their claims don't really match reality [4], nobody cares. The marketing has already succeeded. It is exactly the kind of marketing that is taylor made for social media and if we don't want to be inundated with it in the future, we need to question it every time it appears so that only the truly deserving reap its benefits. Extraordinary claims (should) require extraordinary evidence.
[1] - http://gigaom.com/2011/12/13/meet-the-internets-newest-boy-g...
[2] - http://newsfeed.time.com/2013/05/22/18-year-old-invents-unde...
[3] - http://www.dailymail.co.uk/femail/article-2335195/Meet-Madis...
[4] - http://www.businessinsider.com/the-17-year-old-yahoo-paid-30...
[1] - http://grapefeed.com
We really don't. You playing armchair internet detective will not stop people from getting more attention than you.
What do all of those things hurt? Nothing. There is absolutely nothing wrong with being a story on the internet for a few days. It's not being shoved in your face, you're not being made to read about it. You chose to join this thread, like you chose to look up those four examples of the thing you hate so much.
I would much rather question the people who spend their time trying to denounce others.