Just sent this out after some wordsmithing with Ori: https://twitter.com/mediawiki/status/630865572654264320
Thoughts about featuring it on the other accounts too? If the "asynchronous" Yodaish humor is too nerdy for a general audience to retweet it directly, we could also use this wording or something entirely different:
Noticed Wikipedia got a lot faster since Friday? We now load all JavaScript asynchronously. https://phabricator.wikimedia.org/T107399 [+graph screenshot]