I get a fair amount of (local, I live near DC) recruiter spam through it, but it's often nothing to do with rails, and it is mostly third party recruiters.
I'm looking for a startup or small-company environment that actually uses rails. Big ERP jobs are easy to find, but the startup jobs are, despite the supposed feeding frenzy, a little bit more scarce on the ground. (Or else I'm not looking in the right place!)
This article mentions at least a few engineers passing on leads to companies that I might actually want to work for; that's what I'm trying to find.