This is such a stupid idea on so many levels but mostly because it’s functionally impossible. The amount of satellites that would need to be launched in order to be able to form a visible image from the surface of the Earth would be prohibitively expensive and complicated to organise. They would all crash into each other within about 15 minutes - because orbits are inherently chaotic, and because of the ultra low altitude they’d have to maintain to make it remotely visible, they would burn up in the atmosphere almost instantly.
Basically no one with even a high school level education is actually proposing this.