While I agree with most of your assessment, this is one bit I very much disagree with: > But I think it is the easiest ecosystem to be a terrible developer in,

While I agree with most of your assessment, this is one bit I very much disagree with: > But I think it is the easiest ecosystem to be a terrible developer in, and still get stuff working. That honour would go to PHP, as far as I'm concerned. JS has many more fail-hard scenarios, and if you don't adapt your attitude to learn about things before using them, you're very quickly going to run into brick walls due to the entire callback thing. Neither really has anything to do with MongoDB either - there's nothing inherently JS-y about MongoDB (JSON isn't JS), it just happens to have picked up a lot of traction around those parts.