As a Tech Recruiter and former Developer I've been first-hand witness to the incredible hypocrisy and mind-boggling anti-logic perpetrated by the recruitment industry and I've attempted to answer your question at length in my blog post 'All that's wrong with the recruitment industry' http://voltsteve.blogspot.com/2011/07/all-that-is-wrong-with...

Someone in the comments below mentioned how they don't feel that the recruitment industry can be disrupted whereas I completely disagree. The industry is already suffering and multiple different factors are playing a part. As PG mentioned in a recent comment on a similar post, more and more companies are investing in building internal recruitment teams.

For the record, I agree that most tech recruiters suck. Even if you find a decent one, chances are they work for an organisation that imparts a vast amount of KPI's and compliance issues that generally restrict their capabilities and creativity.