How are you always able to post these lists so quickly, with posts going back to 200*? These posts don't even link to the same source, and not every title contains "Field Manual", one is just named "How to make sure nothing gets done at work", has 3 comments and is from 2015. Wild :D
It's fun for me that someone noticed that! The hard part of those lists is finding the threads that don't show up in obvious searches (e.g. exact title matches).
The answer is (1) I wrote software to let me use HN Search and do related HN things rather quickly via keyboard shortcuts; and (2) I spent 10 min tracking down ones that I'd missed last time.
For classics/perennials like the OP, it's a bit of an investment since they will come up for as long as HN exists, and hopefully that will be a long time.
No but it's on my list to do that one of these years. I'd need to factor out the stuff that makes sense only for admins from the stuff that users could use. Currently all that is tangled together.
I think the guy you replied to, dang, runs the site. So I figure they probably have some sort of admin dashboard with tagging functionality for common reposts? Just my guess.
