I can't speak for other English wikipedia contributors, but the reason that I as an english wikipedia user will not be visible as an English wikipedia voter, is that unlike in past years, when I most closely identified with that particular project, I shall not be voting *from* that project, but rather from the Finnish Wikipedia.
I suspect many regulars of the English wikipedia will be voting from other projects too. So that figure of 16 percent may be hugely misleading.
-- Jussi-Ville Heiskanen, ~ [[User:Cimon Avaro]]