[gregmac]

> A lot of times a job spec contains a minimum of 10-15 skill you need to know.

This can also happen if they are just bad at writing job requirements. Remember, it is typically programmers (or their managers) writing these things, and sometimes HR or a recruiter (who doesn't understand any technical details) "cleaning" it up.

They may just mean "Here are the skills we need, we want to hire someone that knows some of these, and is able to learn the rest fairly quickly".

Of course, they could also have someone specific in mind (but are required to post the job anyway), and in some cases may be delusional and really think they can find someone with all those skills.