Complex sentence: At first, NoFap ran weekly and monthly challenges for a small group of people on the forum, and then the NoFap administrators created a badge system, and now forum members set their own challenges based upon their own personal goals.
Split into simpler sentences: At first, NoFap ran weekly and monthly challenges for a small group of people on the forum, and then the NoFap administrators created a badge system. Now forum members set their own challenges based upon their own personal goals.