Todo question
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From Talk:Help us
By "P1 Improve content of Help us and make translatable page." you mean replacing its content to use MediaWiki-namespace messages? If so, you can do this via {{int:MessageName}}, if that is meant to be done in another way, I don't know which one that would be. Marc-Philipp (MtaÄ) 20:05, 7 March 2012 (UTC)
Thanks for your input. We have mw:Help:Extension:Translate for that, of course! :)
Making it translatable isn't the issue here. It's identifying maintenance tasks that require entry level or intermediate level knowledge about translatewiki.net, so that those users that want to participate beyond "plain" translation get the opportunity to do so. That's an intermediate task in itself :).