Hi,
One of these oddly-working features of MediaWiki is import sources: from which wikis can you import content into your wiki.
The default is none. Nevertheless, a lot of wikis in all kinds of languages do want to import from other wikis, which makes a lot of sense. You can see the full list here: https://noc.wikimedia.org/conf/highlight.php?file=InitialiseSettings.php
(This page is huge; search for wgImportSources.)
Since there is no default, every new wiki has to create its own entry there. It's not a part of the usual wiki creation process ( https://wikitech.wikimedia.org/wiki/Add_a_wiki ), so people only notice this when they try to import something and nothing works, at which point they often aren't sure who should they ask to fix this.
Does anyone object to having some sensible default for this, so that at least something will work when people try to import?
Taking the most common sources listed in the file above looks like a good starting point.
I proposed this almost a year ago ( https://phabricator.wikimedia.org/T214139 ), but the commetns there suggest that a wider consensus is needed, so here I am.
-- Amir Elisha Aharoni · אָמִיר אֱלִישָׁע אַהֲרוֹנִי http://aharoni.wordpress.com “We're living in pieces, I want to live in peace.” – T. Moore