The link does not work for me. I think this is the same discussion: https://old.reddit.com/r/China/comments/1cad56g/the_toilet_p...
The problem is that Reddit has started sometimes generating these links with /s/ in them, which are supported by new Reddit (www.reddit) but not by old Reddit (old.reddit). Given Reddit’s track record, I am certain this is the latest in a series of intentional moves to gradually tighten the thumbscrews to make old Reddit less useful, so enough users will switch to new Reddit to justify closing old Reddit down.
I'm seeing more and more ways that they're subtly breaking old reddit that would be trivial to test for, so it's harder and harder to apply Hanlon's razor...