I have no affiliation with either Google or Mozilla but I pretty much always upvote articles concerning Go and Rust simply because I'm interested in those languages and want to encourage more articles about them to be posted.
At some point there were quite many Go articles without much substance. These articles were also very predictable. The positive articles contain pretty much the same enumeration of Go features (goroutines, channels, imports, etc.) or how they rewrote a five year old, now well-understood, failing Python subsystem in Go and have massive improvements (surprise). The negative articles pretty much all complained about how not using an import results in a compilation error (surprisingly, the lack of generics are only mentioned in comments ;)).
But these slides were genuinely interesting to pretty much the whole HN audience: it covers architecture decisions, the effect of code rot, the breadth of the Go standard library, a new object caching system, and a real-world example of Go usage.
tl;dr even to someone who is a bit critical towards Go (ie. me), it was a very interesting read.