Obviously the author has more of a historical overview, but, anecdotally, I am getting the same quantity of contact concerning roles as I have ever done, but there seem to be more and more recruitment companies moving into the ruby space. I would say it is also possible that what the author is seeing is less of a slowdown in the ruby market and more of increased competition in the recruitment market.

Having dealt with the author previously (though never having taken a role through him) I hope his approach of specialising in a technology stack and pursuing that as a specialist, gaining knowledge of both the hirers and potential contractors, wins out over the LinkedIn profile fishers.