@druid @harbeau Yeah, nothing exactly lasts forever, it needs some kind of maintenance.

As for the wahoo… I think the medium-independent parts will stay, like you can graffiti miku all over the place, the songs can end up being folklore, …

At least to me things that managed to somewhat end up as folklore are much more permanent than archives. Like Celtic folklore is quite proof of this, it's ~2 millennia old, I don't think a lot of people can read the original texts, yet if I say King Arthur most people know who it is.