This was a surprise. I've never seen Main Street U.S.A. unfinished like this before. Anyone know the story?
They actually do those "themed scaffolding covers" whenever they are doing work on a building. I see them at MK and DL quite often during the off-season. I guess you've just been lucky to go to a Disney park when they aren't doing work on one of the buildings.
Personally, I think it's quite cool that they actually theme the scaffolding as to not make it stand out quite as much!