I started to think about this a bit while I was replying to pavel_lishin below. Maybe it was more of users caring more about other communities or images more so than they do about political causes.

I must agree the scale of some of the works on there and the coordination it took is very admirable. I loved checking in every few hours just to see what had changed and who was fighting for control. It was definitely fun for a while to follow, but after time it became like a cult with some really toxic side-effects that leaked into different subreddits and detracted from the actual content fit for that sub.