Something like rotten tomatoes could be useful. Have a list of "verified" users (critic score) in a separate voting column as anon users (audience score).
This will often serve useful in highly controversial situations to parse common narratives.
Peer review goes beyond the formal process, in the court of IRL. Social media is one place people talk about new research, share their evaluations and insights, and good work gets used and cited more.
Arxiv has been invaluable in starting to change the process, but we need more.