Really cool! Do you offer collection archives for download, for distributed archival purposes? It seems like this archive (https://www.reddit.com/r/WeAreTheMusicMakers/comments/3ajwe4...) has more.
I'll consider adding a big "download archive" button. Just curious: do you have any immediate plans for the archives, or just want to keep a copy for backup purposes?
MIDI files are somewhat similar. Only a small population care, an even smaller population care a lot, but archivalists shouldn't be the one to determine to keep them around for 200 years. They just should, and forget it.
So yeah, that's pretty much what I do.