Given how many programmers are out there, it wouldn't be too beneficial to create a job posting that catches, a couple dozen at a time, the job-seekers who are padding their credentials.

And some of the applicants are presumably thinking something like "I'm as familiar with this as I'd need to be to perform the job. And I'm not going to mouth off to HR about how they don't know how long Java has been in existence. So I might as well apply."