Yeah, I (perhaps because of masochism) click on links to Quora answers I see in my email digest, and it will me to the answer within an infiniscroll page. If I follow any link and click back ... the answer is gone. I have to go back to my email again and get it from there if I want to see it again.
It almost seems like, beyond a very low threshold, UX gets worse as you throw more engineers at it.