Maybe there can be something like Theorytab but for community-made songs etc. People on it can give feedback constructive criticism on other peoples work and favorite their projects. This is to prevent the recent amount of non-existing pieces appearing on Theorytab or just share their songs.
This is probably a really large project to add but I just wanted to suggest something so idk.
This idea was from the artist name from this “spam” song waltz melody by community songs Chords, Melody, and Music Theory Analysis - Hooktheory