As best practice we usually encourage GLAMs to provide as many metadata as possible for media donations. However, providing these metadata and "wikifying" them (for examply as part of an upload using Pattypan) can be quite a bit of work, either for a Wikimedian or a GLAM volunteer/staff member.

Do we have any case studies outlining immediate benefits of providing more metadata? For example, does providing more metadata lead to better uptake of images in articles on WP?