And here I am, a rails developer trying to move to SF, and I only get maybe a few nibbles a week. I must not be on the right job boards. Or something. Is the meetup.com ruby list the place to go? Someone also suggested changing my location on LinkedIn to SF - however, I am hoping to relocate, but haven't done so yet, so that seems dishonest.
When I was in the market, I never saw the kind of rabid attention the OP is describing. Sure, occasional recruiter spam, but no more or less than anyone else. I can't argue with the OP's experience, but I would take all claims of "super massive talent shortage oh em gee" with a good pinch of salt.
I do the interviewing for my current company, and we have had a senior role open for 10 months. We have gotten to the offer stage 3 times but lost nonetheless. This is for a rails role.
edit: my boss makes the offers, and I suspect we have been losing out on these positions while making offers around 130-140.