Conservapedia

[LSPoorEeyorick]

I'm not saying it's ethnocentric to use a particular country's spelling. I'm saying it's ethnocentric to list use of a particular country's spelling as biased and inappropriate.

[Alex]

Plus, this:

even though most English-speaking users are American.

is patently false. There are almost a billion people on this planet who speak English as their first or second language and most of them use British spellings (since they were British colonies until recently). Hell, more Indians speak English than there are Americans.

On controversial political topics Wikipedia does tend to have a "liberal" slant. And on religious topics it also has a (rightfully) skeptical slant. Of course, "conservative science" is as stupid an idea as "socialist biology" was in Russia.