This is what annoys me the most, especially if it's a 'stealth' idea or it's a YC company that posts once a month instead of using the "Who's Hiring?" thread.
The only thing I don't like about job posts is if they don't say right in the headline their geographical area. If they do have that, I can filter them out in 5 seconds.
Launches are interesting to a general audience.
Jobs only to a small niche.