/r/Layer was a collaborative art project launched by Reddit in partnership with Adobe, serving as a spiritual successor to projects like /r/Place. It allowed users to contribute individual drawings or 'layers' to a communal digital canvas, resulting in a dense, chaotic, and beautiful collage of internet culture. The meme format often references the overlapping nature of these contributions, the fleeting nature of digital art, or the specific 'stamps' used during the events. It represents a unique era of collective online creativity where individual expressions merge into a single, massive visual record of the community's imagination.