This is not a dupe. This article has more information than the other. Both discuss the same topic. I'd classify them as "Related discussion https://news.ycombinator.com/item?id=12238197 (307 points, 3 days ago, 199 comments)"
Does this Quanta article contain significant new information to be discussed? If so we'll unmark this one as a dupe and restore it. Otherwise it meets the criteria for a dupe which is: a specific topic having had significant discussion within the last year.
I think that the difference between the article is very big.
The quanta article discuss what they have saw in December and what they have saw now, in the section "The Bump that went away". Also that and why they expect to see a new particles due to supersimetry in the section "Missing Pieces".
The Backreaction article discuss more about the influence of the lack of a experimental evidence of an unknown particle in the physics community, i.e. that without an experimental guidance is difficult to choose between the different theoretical approach, and some ideas for future research.
