I'm finding a ''problem'' about sharing my taste of music with others around the world.
When i make my list public, everyone can add songs to it. Or even withdraw them. The reason i made it public is because i got some friends who add music to that list too. But i want only these people authorized to add or withdraw songs. While the rest of the world can just enjoy it.
So my idea (if it doesn't exist yet) to add a feature which gives you the authorization that only people i select can add or withdraw songs. The rest of the world who listens should be unable to do so.