ugh the typical guild and examination system thing. has anyone done any other types of systems? like for example, maybe make the categorization of "Adventurers" more complicated (include different rankings such as intelligence and strength. actually, don't even include them as rankings, just as information). in addition they could make it so that everybody has a rating, that goes up based on task completion and competition (maybe make it so that people are capable of raising their rating by challenging higher rated adventurers). They could even do something like a resume or something where the person in question states their preferences in terms of task categories and such.
Like for real though. this typical F E D C B A S ranking has been overused.