The [most recent article @ Mozilla Hacks](http://hacks.mozilla.org/2010/11/its-all-about-web-developers/) features infographic that included information about web developers perception of online communities. While Stack Overflow is highly popular there is a few areas of concern, particularly "site organization", uniqueness of information and the accessibility of the owner/leader.

I was wondering if some policies, such as preserving multiple duplicates are contributing towards the negative image of Stack Overflow among web developers.