Comment by karmakaze

The post is based on a misguided premise. Don't hire based on experience with a niche language. Hire based on the ability and motivation to learn and use it effectively. Many interesting and useful things I learned on past jobs--actually almost everything except BASIC, Atari machine/assembly, and datastructures+algorithms. I got hired for a Ruby/Rails position having no experience with either on an invite from their CTO.