Hi Nick, regarding your questions:
You are very welcome to sign up to the social media mailing list, which is where we currently post draft social media messages for review, often in parallel with Social media/Calendar. Feel free to post suggestions yourself, or weigh in on other people's proposed messages (in the WMF social media team, we generally run on a four-eyes principle). It's also a good place for more general discussion about social media related to Wikimedia projects.
Oh, and it seems we forgot to link @wikivoyage in that anniversary tweet - sorry about that, but there will be other opportunities!
Over-qualified CSS selectors
My apologies that this message is just available in English.
Over-qualified CSS selectors of portals in Wikimedia skins have been changed.
div#p-variants are now all removed of the
div qualifier, as in for example it is
#p-personal, #p-navigation …. This is so the skins can use HTML5 elements. Your gadgets or user styles seem to use them and you will have to update them. You can read more in phab:T252467. Johan (WMF) through MediaWiki message delivery (talk) 12:27, 8 June 2020 (UTC)