Here's one: http://blog.gmane.org/gmane.comp.lang.scala.debate/month=201...
Apart from occasional issues in the community Scala is criticised for being too complex: https://www.youtube.com/watch?v=uiJycy6dFSQ
Apart from occasional issues in the community Scala is criticised for being too complex: https://www.youtube.com/watch?v=uiJycy6dFSQ
I think Paul Phillips agree with the overall direction of Scala and thinks it's the best programming language out there, but disagrees on design details and compiler inner workings.