URL relationships
I do need many links, especially on less famous artists.
When the artists you are interested in are lacking links, please add some. 
MB does not contain subjective info (both first party and third party) and we also need that when an artist means to us.
And also it is a source of cross reference for objective info.
Annotations
Also, you did remove the end of career, restart of career annotation, saying it was not relevant to this project.
Some people do want this feature though.
And usually, interested people are writing this kind of unsupported yet relevant info in annotations, that I think you should not have removed.
In this particular example, it was just a two year hiatus. For me it’s really nothing, but maybe it’s important for the fans?