The paper itself has been discussed a few times:

An Incremental Approach to Compiler Construction (2006) [pdf] - https://news.ycombinator.com/item?id=29123715 - Nov 2021 (10 comments)

An Incremental Approach to Compiler Construction (2006) [pdf] - https://news.ycombinator.com/item?id=20577660 - July 2019 (5 comments)

An Incremental Approach to Compiler Construction (2006) [pdf] - https://news.ycombinator.com/item?id=13207441 - Dec 2016 (19 comments)

An Incremental Approach to Compiler Construction (2006) [pdf] - https://news.ycombinator.com/item?id=10785164 - Dec 2015 (13 comments)

Writing a Compiler in 24 Small Steps [pdf] - https://news.ycombinator.com/item?id=1652623 - Sept 2010 (16 comments)

An Incremental Approach to Compiler Construction - https://news.ycombinator.com/item?id=1408241 - June 2010 (18 comments)

(and also in comments: https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...)