I am not sure what an "official genealogy researcher" would be? (a pro?) I am someone interested in Swedish research and I check the "Daily Posts" for posts mentioning Sweden but I'm certainly not a pro.
I don't know who the other person is. I mostly have Swedes (and one Danish grandfather). I would guess that this Pauline is someone who posted a query a long time ago. If you can't find any recent posts from her, perhaps she has given up. Not everyone is serious about genealogy.