Criticisms of Open Source 

Should this article contain any dialogue regarding the criticisms of the Open Source concept? One example that springs to mind is Blender; the interface dictated that it was commercially unsuccesful, however, after being expanded upon by open-source development, the resultant software is still plagued by poor interface design that frustrates users, making it difficult to use the powerful software behind the interface. 

Other problems worth noting could be the lack of documentation surrounding active development that makes it difficult to utilize a product to its full potential.

Perhaps this has already been mentioned, or there is a better forum for bringing it up; I myself am not well-versed or articulate enough to express a significant or valuable dialogue on the topic - I am merely aware that such criticisms exist and perhaps should be acknowledged.