It probably wouldn’t work with Lemmy, but kbin users could do it. Might give the fediverse more attention, but it would need to be more original than a r/place clone.
I agree. I find the culture here to be significantly better than reddit, but it still needs a-lot of work before they attempt something like r/place.
I wonder how it would even work with other instances though? It seems like that might be difficult to federate…
You could maybe make a magazine where each post represents a pixel and you can comment a color to change it then make an app interface that visualises the canvas when you enter the magazine and automatically posts for you when you click a pixel to change its color. That way each instance could take part in the canvas making if they wanted to.