While I am a big fan of in-jokes for April Fool's Day, they should stay off articles and official Wikipedia-related documentation.
I think there should be a policy immediately adopted for all language Wikipedias, against non-legitimate articles on any day of the year, including so called "April Fools Days". While I'm not against humour, they stand to serve no purpose to the project.
This is in regards to hoax news stories on the Catalan and Spanish Wikinewses.
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