This would be more useful to me (as a hiring manager) with something that encouraged better links to somebody's accounts / portfolio / etc. instead of just their usually-empty HN profile.

e.g., I'm currently looking to contract somebody for some devops work here at Mozilla Research, and going through the set of listings that have 'devops' in them and actually finding a link to a resume / github account / anything more substantial than a twitter feed is pretty maddening.