I signed up a little over a month ago for this project which seemed to be interesting. It proposes to give rewards when users write reviews of some companies (not just any), but of some selected by the same project.
The rewards, theoretically, would increase when one had more experience and will carry more written reviews.
So instead of receiving 0.5 Revains, you would receive up to 1 or 1.5 depending on your experience level. Experience level is achieved as you write reviews.
Gradually the project has been changing the rules of the game, reducing and restricting access to rewards for written reviews.

So when you started writing, you did it with the hope that after several reviews, approximately 150 reviews on average to reach level 10, you could receive better compensation for the work done.
As the platform has incorporated more people, and you are getting closer to the goal, the rules of the game change.
The reward has been decreasing until it is currently 20% of the value that a beginner could access when I started writing (from 0.5 Rev to 0.1 Rev), and in the case of the more experienced, the experts have already reduced it to 20%. than they rewarded (1.5 Rev to 0.3 Rev).
This means that the project was nurtured by thousands of reviews, under the promise of better future rewards, thousands of people were writing to achieve at some point receive the reward of 1 Rev or 1.5 Rev, and now they make an 80% cut of the value of the reward.

According to the latest information, the platform promises that later it will compensate the reviews made with part of the advertising income obtained, it does not inform what percentage it will be, how much it will be for each one, simply that it is their intention to continue paying for the reviews made.
Revain was nothing more than a pyramid scam, which instead of stealing money, ended up stealing the work of those of us who wrote.