Fair enough. I fully understand the many smaller artists will be hard to find.
However, using the user's own database and the J River YADB seems like an easy way to potentially add to the album data. For example, someone like Christine Lavine produced 30 albums and may well have more entries in YADB than the one I have in my library. Given that YADB is a J River resource, it seems like it should be used. And the effort should be fairly minimal. You already have the code to do lookups in it and in my library.
Plus, Lavine has 26 entries in Discogs, 16 entries on Spotify, 20 albums on Pandora, 18 on Apple music and all her albums are in Wikipedia. I am not sure what sources you are using, so I do not know how you missed all her albums.
As far as Artist Info, it seems like coming up with 5 or 10 keywords and searching for them to validate that the entry is actually in the music business would be relatively easy and would keep some of the obviously incorrect data out of SL. Patchouli as an herb and Texas as a state could easily be eliminated with a simple search for artist, singer, band, music, group, music and a few others. My guess is that that would throw out more incorrect entries than legitimate ones. Again, it seems like a small effort.
Thanks for listening.