[Mediawiki-l] Effectiveness of Extension:WhiteList?

[Virgil Ierubino]

Does anyone know how well this extension works? Has anyone used it?

It claims to be able to restrict access to all pages except those on a
whitelist, FOR EACH INDIVIDUAL USER. The last part there, of course, being
the bit that makes me suspicious. The documentation on Meta mentions no
holes, workarounds, or flaws of any kind. Does this extension do what it
says on the tin?