I suggest a simple system that shows a list (leaderboard) of people in a table along with how many days they've done NoFap. To get listed on that leaderboard, users will simply click on "Begin Reboot" button and their name will show up on that list at the bottom. Every day, it will add one day. Another button will appear that says, "Reset". Clicking that will return their score back to zero. Reaching 90 days will unlock an achievement (a bronze star or something next to their name on the leaderboard). Reaching 120 days will unlock a silver star. And so on. You get the idea. Resetting more than 5 times will unlock a "persistent" achievement. And then, clicking on "I'm Cured of PIED!" will add another achievement. Also, the leaderboards will only show people that have been active (logged in here) within the last week to keep the list short and competitive. They can also be split between Monk Mode and Regular Mode.