Most recruiters are lazy and just blast emails by language keyword search. No, I'm not interested in a 6-month PHP contract. No, I'm not interested in a junior IT role.
I've found that removing any mention of specific languages and technologies has dramatically reduced the number of job offers, all of which were a complete waste of my time. Now if only recruiters would stop offering me my same title at a 20% pay cut, I'd be fine.