It's not Rails. Web software development in general has simply plateaued across the board. We're out of new frontiers to innovate around and the work from now

It's not Rails. Web software development in general has simply plateaued across the board. We're out of new frontiers to innovate around and the work from now on is about playing custodian to the innovations of the past. Unless something spectacularly interesting comes along, the priorities of the web are now all about supporting what's already been built. Either by maintaining something hastily built and cracking at the seams with patches and fresh coats of paint - or replacing it with something more stable for the long haul. Rails was designed around rapid innovation, not the long haul. So it's in maintenance mode.