It could work. Blatant advertising or marketing would probably earn you plenty of downvotes on Quora, but participating or generating discussion about products,

It could work. Blatant advertising or marketing would probably earn you plenty of downvotes on Quora, but participating or generating discussion about products, ideas, markets should be beneficial not only in gaining exposure but just getting good feedback. Not sure about meeting potential investors. I would think most of them are not exactly scouring Quora for hot startups. We aren't trying this though, so I can't speak from experience.