alt Hacker NewsThis comment interests me.
Over the 10 years I've frequented HN* regularly (usually multiple times daily), I too have been occasionally confounded by new-to-me abbreviations/acronyms, such that I've Googled them to find their meaning. I can't imagine asking the meaning of an such an unknown in a comment, for two reasons:
1. An answer depends on someone else's effort/time to furnish it. Why expect/hope someone's feeling generous enough to spend theirs since you're not willing to spend yours?
2. You have to revisit your query to see if someone has answered it; if not, you either abandon your quest or repeatedly revisit the unknown.
*Hacker News
The comment was edited, originally it said "The problem with the DR part is that you miss a lot of detail" and I thought it was perhaps some term of art regarding endangered species or conservation.
Anyhow, I believe it always adds value to bring clarifications "in-line" to the original thread so everyone reading it can gain the benefit of knowledge, instead of requiring every reader look up something on their own.