The current collaboration playlist allows anyone to delete the whole list of songs, or secretly delete individual songs one by one. Which makes the collaboration feature pretty useless.
To prevent trolls from destroying a playlist, my suggestion is to add special privileges to the owner of the collaboration playlist. So anyone can SUGGEST songs to add or delete, in the playlist. It then pops up a yes/or no option to the owner of the playlist.
Hey there! We don't have any updates on this but we wanted to jump to say we're keeping it at the "Good Idea" status. Thanks for leaving your feedback here in the Ideas Board!