Ok this is a little bit old, but it really resonates with me in some ways.
http://www.zedshaw.com/rants/rails_is_a_ghetto.html
Not the personal rants, but the underlying observations that many consultant/coders do not have a formal computer science education and to people like me, it shows. The difference is palpable. The Rails community is made largely of PHP scripters who have converted. I have worked first-hand with many Rails programmers who can not even write a database query. It’s alarming, but then I consider that the use of calculators in the classroom was also once alarming. In the end, I don’t know exactly where my opinion falls on the topic of acceptable skill level. It certainly depends upon the application, and most applications have a short enough life cycle and small enough user base that it doesn’t need to be theoretically perfect.