So I see people scoffing at the way the English Wikipedia is run, and people referring incorrectly to "What Wikipedia does" when the Wikipedias are just one aspect of the WMF's activities. So do you really know what the WMF does?<p>The encyclopedias, and MediaWiki software, are the flagship projects, and they come in hundreds of languages (I'm watching what happens on the Nahuatl project right now).
There are also many Wiktionaries, where words are defined in any language you can name.
There is Wikidata, which interfaces in a machine-readable way with every other Wikipedia.
There is Commons, which is one of the world's largest repositories of freely-licensed media. This is the first place I search if I am looking for a PD or CC-licensed image. That's what it's there for, in addition to serving media for all the other projects.
There is Wikisource, a large repository of freely-licensed text. See above.
There is Wikispecies, Wikivoyage, Wikinews...<p>The WMF does not simply run web servers, they run a cloud platform. WMF is a player in Big Data, and the WMF Cloud supports developers of bots, tools, database queries, scripts, and all sorts of widgets that interface with at least one project.
Software development. I've already mentioned that MediaWiki is an open-source, in-house platform, and it's constantly under active development. Anyone may create an account and submit an issue in the Phabricator bug database.<p>Outreach. Wikipedias coordinate with college instructors who are teaching how to edit Wikipedia as part of a class. There is a standardized and recognizable process for this now.
WMF holds conferences worldwide, to get people interested in editing, learn how to do it, and keep them engaged.<p>All projects have separate sets of administrators and unique policies and guidelines. If all you know is English Wikipedia by reputation, you've barely scratched the surface.