I wouldn't say one encourages chaos over another. The background is a simple pattern that emerges early on while the social dynamics of the "place" are being di

I wouldn't say one encourages chaos over another. The background is a simple pattern that emerges early on while the social dynamics of the "place" are being discovered by the participants. It's literally the simplest coherent thing you can create and requires virtually no communication between participants. As time goes on coalitions form, cooperation becomes explicit and you end up with more complex patterns (the rainbow) and art (the minion). You saw this same thing play out in /r/place too.