The best approach — with or without upvotes — would be to ask people if you want that information. Upvotes wouldn't reliably provide it — I and many others feel the best use of the voting system is to promote insightful and thought-provoking comments even if I don't believe they're ultimately THE right answer, and we vote accordingly.

I'm not sure why that is relevant here. We're not voting on anything, just discussing it.

Besides, you could always send a message to the author and ask if you're interested.