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I want to ask some questions about Ubuntu Wiki and LoCo pages in it, are they relevant to AU? I'm hoping they'd fall under community.
Questions regarding the wiki and LoCo (as a general, LoCo specific questions would probably be better served elsewhere) are on topic of Ask Ubuntu
LoCo teams have their own tags and yes they would also fall under the "community" tag as LoCo teams are a major part of the Ubuntu Community world wide.