From the way that some of you have been carrying the discussion, it seems as
if some here feel comfortable deriving generalizable claims that culd ring true across the Wikiverse, as if the very substance of certain Wikipedia articles wouldn't have an inherent and significant bearing on the demographic composition and communicative dynamics of online collaboration. I would urge others, as some have lightly alluded to already, to stay conscientious of idiosyncrasies that may exist across a multiplicity of Wikipedias. Since, I am somewhat out of the loop, I would be appreciativei if someone were able to corroborate this idea of cultures of knowledge production that vary from realm to realm in Wikipedia.
There are also the real world, cultural variables which can be reproduced inside Wikipedia. Take for example the study which found that French Wikipedians were much less comfortable deleting others' contributions.
http://jcmc.indiana.edu/vol12/issue1/pfeil.html
Sincerely,
Said Hamideh