In the Artist entry pages (e.g. Vali Vijelie), it would be more intuitive if the interface would write “WikiData” (or “WikiData - Q6274026”) instead of “Q6274026” on the right box where the links are, since I really doubt any reader would make use of the “Q6274026” code

It is more useful to simply write "WikiData" so the reader knows what is that link about without having to hover the mouse on top of it. A random WikiData number shown there can only contribute to making the interface heavy.