"A keen eye for detail"

While I'm on the subject of language, forgive me a grumpy Lynne Truss esque moment of pedantry. Trawling the job agencies on New Street yesterday, I came across an advert for a job requiring someone who is "literate" and has "a keen eye for detail". Judging by the appearance of words like "acheived" and "vacancie's" in the same notice, I can only assume it wasn't for a position at that particular agency. Or that whoever wrote it has a well-developed sense of irony.