well, i was, but to be honest i don't think that you can compare interfaces like this, you have to use reflect library to deep compare them
i'm probably not going to use it... concrete types ftw, easier imo, usually shorter code because no type assertions required
but yeah, it's for an event based access control list... the owner users are set up in the configuration, and when they sign a special event type with a specific tag syntax it modifies the access control list to add, remove or modify entries
basically a simplified, mostly in-database mechanism for a paid relay