Charles Matthews said:
Next year we should switch the wiki to read-only mode for 48 hours and take the opportunity to clean up the database schema a bit. Remember it's not just admins messing with articles, there's plenty of anonymous users too, and not all of them are careful to clean up the next day.
-- Tim Starling
Come on - I thought the principle was to stay open for business.
Not at all. Didn't you know the internet closes for cleaning on April 1?