Here are the main threads (in reverse order) that I found about Ghidra generally. Of course there have been many more threads about specific aspects or related projects: https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que....

(Btw, these links are just for anyone curious to read more - reposts are fine after a year or so - https://news.ycombinator.com/newsfaq.html)

NSA Ghidra open-source reverse engineering framework - https://news.ycombinator.com/item?id=40508777 - May 2024 (61 comments)

Ghidra 11.0 Released - https://news.ycombinator.com/item?id=38740793 - Dec 2023 (11 comments)

Ghidra 10.3 has been released - https://news.ycombinator.com/item?id=35908418 - May 2023 (6 comments)

NSA Ghidra software reverse engineering framework - https://news.ycombinator.com/item?id=35324380 - March 2023 (103 comments)

Ghidra: Software reverse engineering suite developed by NSA - https://news.ycombinator.com/item?id=33226050 - Oct 2022 (42 comments)

Ghidra: A software reverse engineering suite of tools developed by the NSA - https://news.ycombinator.com/item?id=27818492 - July 2021 (142 comments)

Ghidra 9.2 - https://news.ycombinator.com/item?id=25086519 - Nov 2020 (78 comments)

The Ghidra Book - https://news.ycombinator.com/item?id=24879314 - Oct 2020 (5 comments)

Ghidra Decompiler Analysis Engine - https://news.ycombinator.com/item?id=19599314 - April 2019 (30 comments)

Ghidra source code officially released - https://news.ycombinator.com/item?id=19572994 - April 2019 (7 comments)

Ghidra Capabilities – Get Your Free NSA Reverse Engineering Tool [pdf] - https://news.ycombinator.com/item?id=19319385 - March 2019 (17 comments)

Ghidra, NSA's reverse-engineering tool - https://news.ycombinator.com/item?id=19315273 - March 2019 (405 comments)

Ghidra - https://news.ycombinator.com/item?id=19239727 - Feb 2019 (59 comments)

NSA to Release Their Reverse Engineering Framework GHIDRA to Public at RSA - https://news.ycombinator.com/item?id=18828083 - Jan 2019 (90 comments)