I thought people might like to add to this list:
https://www.mediawiki.org/wiki/Analytics/Dreams
of queries that people want to run, once the infrastructure exists.
Mine include: What proportion of site vandalism comes from behind Tor
proxies? Does it differ across wikis?
And Rachel Farrand suggested the question: What proportion of longtime
logged-in editors have customized user scripts (JS or CSS in their
userspace)?
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Sumana Harihareswara
Engineering Community Manager
Wikimedia Foundation