Brion Vibber wrote:
Anyway, adding a notice and/or doing some extra conversion for those 2% shouldn't be a huge server burden.
Would that be only for posting, or will the 2% also be blocked from reading the site? 2% of Wikipedia's readers is a lot.
On the other hand, staying with Latin-1 might exclude some active contributors (Tomasz W.) who want to push the envelope. And wiki experience says it pays off to cater to your best contributors.