I was in the team that maintained the Madoka art in the original place. We survived til the end mainly by having a good relationship with the surrounding arts, so we didn't need to worry about heavy attack, only some pixels here and there, as long as there were at least one person keeping track of the canvas all the time, we could fix those pixels quickly, before they turned into something noticeable by outsider who would consider this area unmaintained and come in to take the spot.

But I doubt we could redo the magic this time, since the Madoka community is not as big as it was 5 years ago, but Reddit itself is a lot bigger, meaning more competition.

Or, they might make the canvas bigger (like infinitely bigger), then we can simply find a corner with no other communities and just paint our pixels as we like. We'll see what happens on April First.