Ask HN: Who writes your job descriptions?

I often cringe when I look at a job description. I can quickly decide if I don't want to work at a place by a few lines in the job posting. But lately I've started second guessing this.

Most of us are on both sides of recruiting. How many times does a posting for someone on your team make it out in the wild with you strongly disagreeing on how it should be written?

People are out there making quick judgements on what kind of place it is to work with going by a description that might have not even included the actual workers.

How good of job does your company do of posting the actual job description?