It is a digital currency used within Revstance, it is generated through a variety of user actions on the platform; such as posting, reviewing and starting comment threads. We have a number of events through the year where tickets are priced in REV.
It means we are a very new platform that is still in the process of building, growing and getting feedback from amazing people like you! Even though we have done extensive testing there is a chance that an issue might pop-up now and again. If you do notice something/anything or have any feedback at all we would love to hear from you!