Ask HN: Can we stop linking to subscriber only content?

Why is it that submitting content that requires a Google or Facebook sign in is so frowned upon, but linking to subscriber only content is perfectly acceptable. The most common case of this is The New York Times, as seen in this link that is currently number 10 on the front page.

Screenshot: http://i.imgur.com/gxR2Ma6.png

Thread: https://news.ycombinator.com/item?id=6111352