This is a very interesting project to me. Me having OCD about cleanliness I leave my house always clean. Having 3 cat's and a dog, lot's of vacuuming and dust is clean daily.
I think having a blockchain that rewards you for picking up trash is a good idea, but to me it sound's like it can easily be manipulated to make it seem like they are cleaning when they post the video.
And after a while when so many people will upload videos, and it might not be possible for the team to watch and reward the people who upload.
I have my eye on this project, and I hope all goes well because I would like to participate in this project.