ViewSource

Allow readers to look at the original WikiText source of the page

Implementations

Most wiki already have this feature.

Perhaps we should keep a list of wiki that do not have the feature instead.

MoinMoin 1.2.1 has added a “?action=raw” link to the top of every page that serves the raw WikiText, even when that page is locked.

The original WikiWiki (and many “simple” wiki) never bothers to lock any page.