REVAIN seems to me interesting. But I am confused about a few things.
In fact, there are a lot of interesting projects on the market, just most of them are scams, but now its hard to immediately understand if a project is real.
You're absolutely right. It's not easy to tell at first glance. I don't understand how you got confused about revain project? This project has existed for a long time, since the ICO has implemented a lot, has a working product, repeatedly had competitions, like this bounty, was getting my rewards and there was no problem. Platform users have nothing negative to say, otherwise they would flood everything on the internet, as it usually happens. Therefore, I believe your doubts are unfounded.
Fot me, there is nothing strange in project success. The the of the project has a good knowledge in programming and development. Also, campaign managers do their work immediately.