The desktop site is perfectly usable with some zooming in to hit the vote buttons. That's a hell of a lot more compatible than half the sites with "mobile" interfaces that look fancy but have terrible usability. (I've complained about some of these on HN before, but a particulary bad offender is that blog theme that lets mobile users swipe left or right to go to the previous or next blog post. Aside from being undisc…
You're refering to onswipe, which has gotten flack on HN before, because it is a usibility track wreck that adds value for the publisher only.