Should you put “Job Seeker” in your email sig?

I was just reading a great article on JobMob on why you should have a personal email signature and what you should have in it. Under your name and tagline, you need a title:

Title(s) – if employed, use your current job title. If you’re currently unemployed, list your profession.

Do people also put “Job Seeker” as a semi-subtle way to get that across, or does that smell too much like desperation?