The funny thing is that they've basically admitted that they didn't want to take the time to build a community system capable of dealing with anonymous users or users identified only by some number. The problem with these featureless micro-apps is that you have 20 different tools which cost you little to nothing but are garbage. Either abandon the idea of one-feature apps and incorporate your functionality in a not-quite-as-slick general platform, or double down and make your app work with anonymity.