Get your facts straight, as a starter of this discussion, both Yahoo and Ask do use Meta Keywords as a part of their ranking, so they are not worthless tags, just need to be used with proper caution.

And I've used the meta description with great success on some larger sites that I work with.

Don't spew things out of your mouth if you are unsure of their truth in totality.

__________________
Web Site Design Basics, Search Engine Optimization Basics, Web Accessibility Basics