@ryo
I actually replied to such a job post back in 2003 or so.
They requested a Java developer with at least 10 years of experience. Java came out in 1995, so I sent them the list of all people in the world that had had at least some knowledge of Java for that long, like James Gosling, Arthur van Hof, Bill Joy, Ken Arnold and others.
Personally, I only had 7 years experience at that time.
They didn't get back to me.
They just take whatever the CEO says, which takes whatever the latest trends are according to the mainstream media.