I think tags would work very good in HN, and I've often wished for the possibility of adding "private" tags for posts, comments and users, so yes, a prefix for

I think tags would work very good in HN, and I've often wished for the possibility of adding "private" tags for posts, comments and users, so yes, a prefix for something as clear-cut as a job announcement self-post would be nice. I usually notice the lack of upvote arrow, though, so it wasn't one of my pet peeves, until now! :)