Is there any reason why this shouldn't be a stated policy? If not, where should we state the policy so that people are aware of it?
Considering that testwiki has a nice documentation page [0] and test2wiki doesn't [1], I think we should probably clear that up before announcing any policy.
[0] http://wikitech.wikimedia.org/view/Test.wikipedia.org [1] http://wikitech.wikimedia.org/view/Test2.wikipedia.org