I think that perhaps there is an opportunity to implement a more broadly useful feature here: content substitution based on user prefs. What if we came up with a more generic way to implement this type of behavior which could also be applied to other situations in which content is region or preference specific? Besides units of measurement, this could also be applied to date and time formats. For example:

the plane was shot at {{time|21:30|9:30 pm}} on {{date|15 January|January 15}} causing the loss of {{measurement|89 liters|23 gallons}} of fuel.

Each user could then specify their preferred format: time: 24-hour clock date: European format measurement: metric

This would solve several problems: * The 12-hour/24-hour time debate (see Manual of Style (dates and numbers)) * Would no longer have the awkward convention of making all dates into links just so they are formatted a certain way * Would no longer have to show both standard and metric measurements everywhere in article contents, which makes them far less easy to read.

Of course how or if this feature is actually used would be up to each wiki, but I imagine it could find a lot of different uses. Just a thought.

Ryan Kaldari