I know how to post a playlist to the sandbox for testing and sharing, but how do I save it permanently for others to download?

The advice I have read on this forum says:

"Admin will purge posts in the sandbox from time to time. To archive your playlists, use personal email, dropbox, etc..."

I have successfully exported the playlist to myself as an email, so I know how to do that - what I need, however, is to create a link outside of the iRealPro app that will allow others to download the playlist. Also, if admin is purging the sandbox from time to time, won't the link I export become obsolete once it's purged?