There are tons of new projects having the potential to create a better world, fix food security issue and solve environmental issues. But they dont live to see to light of day. I think Dreamr App would be a great platform for promoting your project. You could post about your project, and be sure other users are going to see it.
I don't think Dreamr app doubles as an advertising tool, unless posting of projects may be tied to the dreamr of the user. I would suggest other avenue are used for advertising of one's project to give wider reach and longer presence online considering the fact that the dreamr posts are only live for a maximum period of 72 hours.