Thanks for your comments Ed. To answer your question, all Wikidata items created after someone else made a WIkipedia page (like the original Finnish Wikipedia article at the beginning of this thread) are by definition "stubs". Often (because of spelling differences in names) these should be merged and not fleshed out further. This stubby group of possible merge candidates happens precisely because the person making the item is not the same as the person making the article. One of the requests I have made before is to have a tool that generates a list of items linked to the Wikipedia pages I personally created. In my case, this would be the Wikipedia pages I created before 2014 or so, which I believe is more than a thousand. If I had a list of these with the number of statements in the items I would go through the ones with less than 5 statements and fix them. Since Wikidata I have flipped my way of work: instead of starting with images on Commons and then writing an article on Wikipedia, I now start with items on Wikidata and add images and articles much further down the road.