the administrators loosely based e2's incentive system on a dual currency system borrowed from many role-playing games. users may earn experience points ("xp"), which count strictly toward level progress, or convertible currency ("gp"), which may be used to purchase lesser, temporary privileges. every time a user creates a writeup, he or she earns five xp. users with at least ten contributed writeups and 500 experience points can vote (up or down) on a writeup. a positive vote grants the writeup's author one experience point while also having a roughly ⅓ chance of giving one gp to the voter. after voting on a writeup, a noder can see the writeup's "reputation," or number of positive and negative votes (staff do not need to vote in order to see a writeup's reputation). the site's editors may remove writeups that do not meet editorial standards from public view. authors have the ability to withdraw their own writeups. in both cases the removed writeup is sent to its author's personal "drafts" space, where it may be prepared for re-submission or deleted. the only effect writeup deletion has on the author's account is that the five xp granted for creating the writeup is removed. writeups deleted before march 2011 are visible to the author on a legacy page called "node heaven"; newer or more recently removed items become drafts.