Talk:Challenge Patches Leaderboard/@comment-25304012-20150919151528/@comment-25661911-20150919173145

Khan Academy keeps changing the way things (like Challenge Patches, Badges, etc) are organized and they usually "Delete" the old version of a Challenge Patch or Badge, meaning that folks have already earned that Patch or Badge get to keep the deleted one, while "newer" users cannot earn something that has been "deleted". So, unfortunately, some of the higher Challenge Patch totals simply reflect how long a person has been with Khan Academy and how many "Deleted" Patches he/she still gets credit for. Sorry.