<p>First, some context, as I see it:
I think of CV being like the Physics, Electrical Engineering, and other knowledge-domain StackExchange sites.  I think of SO being a big programmer / developer / software-engineer-oriented site, i.e. people close to the coding and implementation of stuff.</p>

<p>R is a programming language that is accessed from multiple environments -- the standard R console, RStudio, Revolution R, Deducer, JGR, ESS, etc. -- and multiple R&lt;-->Other language/software connections (e.g. rJava, JRI, Rcpp, RExcel, RCOM, etc.).  As I stated on the <a href="https://meta.stackexchange.com/questions/100541/programming-language-specific-stack-exchange-sites">Meta page</a>, I think that people may solve problems in R, but usually they're using R to solve a problem <em>from</em> some other context (e.g. regression, visualization, etc.).  Because of that and other differences from working in C, Java, etc., it's not a typical cultural fit for SO - it's better to have a separate site like the Ubuntu, Linux, and other environment folks do.</p>

<p>To me, grafting R onto CV is like grafting Matlab onto the Electrical Engineering site, except that R is a far more pervasive beastie and is evolving at a far more rapid rate than any other language.  Personally, I would like to use both sites (i.e. CV and a new R.SE site), and encourage questions to be submitted to the right site.</p>
