Spam hijacking of Spotify's collaborative playlist function has been a nuisance for years without any resolution. Reddit communities involving Spotify playlist sharing have been reporting this issue to Spotify for years. Spotify could implement simple administrative functions for the original creators of collaborative playlists to tackle this issue (similar to the concept of Google Drive document histories, as outlined below).
Example: recently a collaborative playlist I loved, with over 50 collaborators and 1000+ songs that had been growing for 5 years, was emptied by a group of new, unverified spam Spotify accounts. the playlist was replaced with songs from a small music label, seemingly a tactic to promote the label's profits. the original playlist creator did not make a copy and now has no way to restore the previous 5 year playlist project.
Idea: Spotify should implement some "administrative" function for the original creators of collaborative playlists, to prevent malicious editing by spam collaborator accounts. such as giving the original playlist creator access to a "history" of playlist edits (like a Google Drive document), so previous versions can be restored in the event of a spam collaborator hijacking (and/or possibly aid the identification of spam collaborator accounts to be reported to Spotify, and/or possibly allow the original collaborative playlist creator to block such accounts from future edits of their collaborative playlist).
Please note that even if an idea is currently set to “Not Right Now” you can still add your vote there and we revisit those ideas on regular intervals. It might be that their time would be right in the future.