In this new post on 7PHP.com they interview Yitzchok Willroth (aka famous PHP Rockstar - Coderabbi - came with an idea which is The #BiggestLoserPHP15 Challenge!
In the interview Yitz talks some about his background in the PHP community and some of his conference speaking. They then get into the "Biggest Loser" project and where the idea for it came from. He talks about his own motivations for starting the project, when the challenge ends and how the competition works.
Link: http://7php.com/biggestloserphp15/