Earlier quoted context omitted.
If pg wouldn't mind me scraping the site, in a manner that would not impact the sites performance, I will write an app to collect this data and publish it to the public domain.
"... If pg wouldn't mind me scraping the site, in a manner that would not impact the sites performance ..." you don't have to scape the site, RTFM. The official 'hnsearch' api will most likely yield the info you need ~ http://www.hnsearch.com/api
Thanks for point that out. I did not know their was an api for querying data on HN.